Defining Flat Screen TV

AV Greek writes in January, 2007:

The thing to look for when buying a flat-tube TV is something called dynamic focus. Within the inside of the set is usually two or three rheostats on the flyback that regulate focus at different points on the CRT. Depending on where the beam is on the CRT, the set will use that particular focus point.

RCA/Thomson was one of the first manufacturers to use this system on their ProScan models back in the early 90's. Their sets however were not flat tubes, but they had extremely wide angle, sort gun picture tubes, and this feature was necessary to achieve good focus at the screen corners.

Needless to say, you are not going to find this on the little $99.99 wal-mart specials, so likewise, those flat-tube TV's look terrible. Purchase one of the higher end Japanese sets, like a Trinitron Wega, and you'll be sure to get it!