A TV/video viewing supervision system that enables a supervisor, typically a parent controlling children's viewing, to selectably program the hours, programs and/or channels of television, VCR, cable TV, satellite TV and/or game viewing that are allowed and/or blocked from viewing by comparing the signal...http://www.google.com/patents/US6025869?utm_source=gb-gplus-sharePatent US6025869 - Video viewing supervision system
