I have a hdtv magnavox 27 inches flat screen, it does well for a while and the I loose the picture or the sound goes crazy

This television is having problems with intermittent component operation. The components have not failed as yet but will with continued use. This could cause more problems with your television. The television should be test for faulty component operation. The Magnavox customer support telephone number is 1-800-705-200. Tell them the model number of the television and the problem you are having with the intermittent operation of the video and sound.They will be able to help you find a service center to test and repair the television.I hope this information helps you with your problem.