Use Your Own Videos For The TV:

It's possible to watch your own videos on the Sim-TV. You must put the video you want into MyDocuments/EaGames/TheSims2/Music/ (the TV sender you want). If you then turn on the TV in the game you can watch it! The video must be .avi-clips and the clips shouldn't be larger then 128x128 pixel also it shouldn't have more then 15 frames per second.