Television and Home Theater

Have a Mitsubishi big screen tv that turns itself off after about 5 min of watching it. Any ideas on a easy fix? Or has this TV seen its last???

I have a TOSHIBA CX35D80 I turned the set on and have audio but no picture just a white line across the screen?? Should purchase a new TV or get it checked by a repair Tech? ,or is it worth buying to get it serviced?? Please let me know THANKS my e-mail is [email protected]

I just purchased this new Hitachi 42" lcd (HDTV). The color seems very washed out with grays, greens, gold colors and not very accurate. The HDTV channels are definitely more clear, but still off on color. I've messed around with all of the video color settings, but can't seem to adjust to a clear color picture. Does anyone have any suggestions or optimal settings??