Is My Tv Compatible Or Built For Hd?

I have a Daewoo DTQ27U4SC 27″ Flat Screen TV and I’ve been trying to find out if it is HD compatible, so that I might get an HD receiver. Any help on figuring this out would be appreciated.

My Tv Daewoo Flat Screen Has Distorted Sound And Gentle Popping In The Background.?

the voices on the TV became very low and changed. the Tv is only 4-5 years old