True, you don't need both a docking station and a cable, but only if the cable has a dock connector on one end. If you want a docking station, you should be able to buy a cheap cable to connect the docking station to the TV:

http://www.macdevcenter.com/pub/a/ma...ideo-ipod.html

Note that this cable cannot be connected directly to an iPod touch (as the minijack doesn't have video out).