I LOVE taking pictures of old TV's! I use an SLR with a shutter speed of 1/30 to capture the best picture of the TV (including both interlaced fields without any bad effects).
My latest picture:
http://img.photobucket.com/albums/v3...GP6970copy.jpg
It's my Samsung in my sig, with a Sega Genesis game console pushing some high color amounts to show a picture.. Programmed by someone I know, and it only works on CRT's too, because it uses CRT raster effects to pull off that color (basically interlaces with the two fields having two different color palettes. LCD's don't like that).