Insignia NS-32DF310NA19 TV

Allows your TV to connect to the Internet or to a home network wirelessly, without the use of a wired Ethernet connection.

Streaming video services that this TV had installed at time of test. This list may change, with additions or deletions, if you accept manufacturer updates to the TV's firmware.

Offers full web browsing capability.

DLNA-enabled devices can send digitally stored content like music, pictures, and videos over a home network connection--wireless or wired--from a storage device to a player, display, or another storage device. The devices can include a computer, TV, DVR, set-top box, printer, and cell phone.

An ATSC tuner can receive free over-the-air local broadcast digital signals, which may include high-definition widescreen images and multi-channel sound. All HDTVs and UHD TVs have a built-in ATSC tuner that only require a VHF/UHF indoor or a roof antenna to receive the broadcast networks' programmed content. You must be close enough to a station transmitter, with few obstructions blocking the signal, in order for the TV to pick up the channels. Also note that you won't get any of the premium channels typically offered only on cable, satellite, or streaming.

Frame rate indicates the manufacturer's claim of how often a TV refreshes its picture in a second. 60 frames per second is a basic requirement for all TVs. In an attempt to reduce the blurring of fast-moving detail, some models claim to offer 120 or 240 frames per second.

3D TVs use either "Passive" or "Active" technology to present 3D. Passive type TVs typically have a brighter picture but reduced image resolution (except on UHD TVs). Active systems typically present 3D at full screen resolution but image brightness is lower than when viewing programs in regular 2D. Active 3D TVs now use very light weight 3D glasses, comparable to those for Passive TVs.

The number of special 3D eyeglasses included with the 3D TV. Some 3D TVs omit this item to control costs. Some 3D Blu-ray players may include these glasses. Retailers may offer a "3D TV + Blu-ray" bundle that also includes the glasses. All of the 3DTVs in our Ratings require the viewer to don special eyeglasses. So-called "active" 3D sets, which require "active" battery-powered LCD shutter glasses, may come with one or more pairs, or none. Additional pairs generally cost from $50 to $150 each. Most so-called "passive" 3D TVs come with four pairs of passive polarized glasses, much like the ones used in theaters, which don't require batteries. Additional sets cost from $10 to $30 each. You cannot use passive glasses with 3DTV that requires active glasses, and vice-versa. You also generally cannot mix active 3D glasses from one brand of TV with another's, though TVs made in 2012 and later may share glasses. (Passive 3D glasses can be used interchangeably with any passive 3D TVs.) There are some "universal" active 3D glasses you can buy as an after-market item .

A 3D-capable display can -- when fed a proper 3D signal and used with other required 3D equipment, such as 3D glasses--provide a strong illusion of three-dimensionality. When in the 3D mode, the TV displays double images, which are resolved into a single 3D image when viewed using the 3D glasses, which sync to the TV. A 3D TV operates as a standard HDTV when presented with normal 2D programs, which are viewed without glasses. Due to recent standards, active 3D glasses made for one manufacturer's TV may work with another brand TV. Some 3D TVs may come with several sets of 3D glasses, while others may come with none. To view prerecorded 3D movies, you'll need a 3D-capable Blu-ray player. Some settop boxes from cable and satellite companies are also capable of sending a 3D signal to the TV, though the resolution is less than that provided by a 3D Blu-ray player.

An ATSC tuner can receive free over-the-air local broadcast digital signals, which may include high-definition widescreen images and multi-channel sound. All HDTVs and UHD TVs have a built-in ATSC tuner that only require a VHF/UHF indoor or a roof antenna to receive the broadcast networks' programmed content. You must be close enough to a station transmitter, with few obstructions blocking the signal, in order for the TV to pick up the channels. Also note that you won't get any of the premium channels typically offered only on cable, satellite, or streaming.

Year of this TV model's introduction

The height of the TV in inches, rounded up to the nearest 0.25-inch. Dimensions include the base and detachable speakers, important if you plan to place the TV on a stand or in an entertainment center. See "Panel size without base" if you plan to wall-mount only the display.

The width of the TV in inches, rounded up to the nearest 0.25-inch. Dimensions include the base and detachable speakers, important if you plan to place the TV on a stand or in an entertainment center. See "Panel size without base" if you plan to wall-mount only the display.

The depth of the TV in inches, rounded up to the nearest 0.25-inch. Dimensions include the base and detachable speakers, important if you plan to place the TV on a stand or in an entertainment center. See "Panel size without base" if you plan to wall-mount only the display.

Dimensions of the display panel only, not including the base, rounded up to the nearest 0.25-inch. Also see "Overall height (in.)", "Overall width (in.)", and "Overall depth (in.)".

How much the television weighs (in pounds).

Fixed-pixel display types such as LCDs and OLEDs have a native resolution. It sets an upper limit of how sharp images may look. Native resolution is expressed in horizontal by vertical pixels (for example: 1920x1080 for an HD display, 3840x2160 for UHD).

The screen shape, or aspect ratio, is the proportion of a TV screen's width to its height. Current HD and UHD TVs have a wide, “16:9” aspect ratio, unlike older tube TVs screens with an aspect ratio of "4:3," giving them a squarish shape.

Almost all UHD TVs can display a special kind of video content called High-Dynamic Range (HDR) video. There are several standard types of HDR signals, with "HDR10" being the most common.

The length of time the product is covered by its manufacturer for defects or repairs. Warranty coverage is often divided into parts and labor. Twelve months for both is typical.

The reflectivity of the display's surface. A screen with a mirror-like, or glossy finish may introduce distracting reflections from nearby lighting or windows. A matte screen is better for reducing glare in rooms with many lights, but these are not typically found on displays larger than 32".

The length of time the product is covered by its manufacturer for defects or repairs. Warranty coverage is often divided into parts and labor. Twelve months for both is typical. With an in-home warranty, a technician comes to your home to service the set when you have a problem -- of particular importance with heavy or wall-mounted sets.

The total number of HDMI inputs on the TV. HDMI (High-Definition Multimedia Interface) is a digital audio/video connection found on TVs, monitors, Blu-ray players, DVD players, receivers, computers, cameras and digital TV tuners. HDMI is the preferred type of A/V connection between TV and device, instead of the old analog methods (component, composite, or RF - all still found on many cable boxes).

The total number of component-video inputs on the TV. Component-video is a high quality analog video connection that can accept high definition 1080i/p or 720p, or standard definition 480i/p. Component-video connections require three separate RCA plugs. The plugs and jacks are color-coded red, green, and blue.

Component/Composite-video shared inputs (total/aux). One of the three component video input RCA jacks doubles as a composite-video input. This means you can only plug in one type or the other at any given time.

Number of composite-video inputs on the TV. A composite video signal is analog, and carries standard definition (480i) video only, no audio. Composite is often used to connect old equipment like a VCR, old game consoles, or old camcorder models, to your TV.

USB port lets you connect a flash drive for playback of multimedia content such as videos, photos, and music.

VGA (Video Graphics Array) connector is essentially a standard connection for video on old computers and old monitors, and is rare on new TVs, in favor of an HDMI connection. This type of input is no longer available on most TVs.

Ethernet is the common wired network connection that allows TVs to access to the Internet. TVs with an Ethernet port typically have WiFi capability as well, but a wired connection is generally considered more reliable and secure.

The TV comes with either a coaxial or optical digital-audio output to let you route the audio soundtrack to an external receiver. The receiver thus splits apart the soundtrack for distribution to various speakers in the room.

When you want to watch TV without disturbing others, a headphone jack (usually on the front or side of the set) lets you plug in headphones via a stereo mini jack. You are more likely to find this feature on smaller screen TVs.

Other connections not mentioned above.