[nufan]

i cant really help you out but ironically i tried to get this acheivement last night. I followed the guide and youtube vid that is under cod4 at xbox360achievements.org

as directed i went through ''charlie dont surf'' only and thought that I got all the TVs however i did not get the acheivement. So I ether missed one (dont think so, cause i got all the ones in the video and checked the last building lots of time before finishing) or you actually need some other levels as well.

Lets see if someone else who was able to get the achievement can weigh in on this one. Like the two intel achievements i simply got too bored to bother to try again.