[The Vibesman]

[ QUOTE ]
Vibesman - What's up with Danson's hair? He went from having this great coif during Cheers, to looking like it was thinning, to it being really grey and stubbly. Toup or plugs? Also it looks like all the color has drained from his face.

[/ QUOTE ]

Ted combed and worked with his hair for the first few years of Cheers to make it look like Sam Malone's, but it was already thinning when he started the show, and after a few seasons he just started wearing a wig. In one of the later episodes (post-Shelley Long) there's actually a scene where Sam admits to Carla that he wears a wig and takes the thing off, revealing his bald dome. (Carla had slept with someone from the bar while drunk the previous night, and was feeling embarrassed and guilty, and Sam was trying to cheer her up.)

I actually just found out fairly recently that Danson wore a wig for most of the show's run, and was surprised. The Vibesgirl thought I should have known.