I have a Toshiba laptop that I connect to my old TV. Being old, my TV has RCA jacks for aux input (yellow, red and white). My Laptop has an S-video jack and a headphones jack. I bought a cord that plugs into both (S-video to RCA). Additionally, my laptop's graphics card had a control program that handles the output. I just detect the display, then clone the output to the TV. Note that with an old, tube-type television, the screen does not have enough resolution to display 12-pt text. Thus, televisions are not good replacements. Check out the discussion "Dual monitor vs one widescreen for simultaneous TV and computer work?" for some more info.