Shifts power from television to the viewers.
http://www.tivion.org/english/eindustryimplications/historyofenhancingtvexperience.html
In 1999 ReplayTV and TiVo introduced their own standalone products in retail that offered viewers advanced VCR-like digital recording capabilities via hard disk drives.
Homepage (images)
http://www.amazon.com/exec/obidos/tg/detail/-/0764543369/
Hacking Tivo (book)