There is no such cable. Or at least one that works for all PCs to all TVs. You'll have to research this deeply to find the cable for your PC and TV!
I need an adapter lead cable to connect my PC to my TV. Where are the best sellers on-line?(I live outside of the U.S., so I'll have to have it sent to a friend to mail it to me).

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic