My JVC 27" tv seems to be losing brightness. The tv is 3 yrs old. What would cause this?

Question

It's the model Av-27320 and it's connected to Direct tv. Problem started before direct tv connection. Tv has different video modes(3), so I choose the one with the brightess setting.

Answer 1

This is a standard CRT TV so losing brightness should not be an issue. CRTs stay bright for many years (10+ ).

Is it the same if you connect other sources? (DVD player, VCR). If yes, then it is not a set-top box issue.

Make sure it is not in a "movie" like mode, otherwise looks like it needs to be serviced.