Television and Home Theater

Last week I purchased a 26 " Maganavox Tube TV from someone on Craigslist. (Dumb Idea!) She claimed the TV was in perfect working condition and was only 6 months old. It has worked fine up until last night. I was watching it and it just shut off. The strange part about it is that when it is plugged in it makes this strange high pitched noise. It was plugged into a surge protector at the time. I have not yet tried to plug it into a different power source, but everything else plugged into the surge protector is working.

A little over a year ago I bought a Magnavox tv model 51mp392h from walmart. The first one did not work right out of the box the convergence really really sucked and would not come in. I call Philips and got no help other then return the tv to walmart. I returned the Tv and got a replacement. I also bought the $299.95 extneded warrenity. Last week (the last week in August 2006) The tv went nuts, would not shut off, would just shift AV inputs on its own would not respond to the remote except any button on the remote would shit AVs. The TV repair guy took a week to come andlook at it.

help?

I have no color on my dvd portion of my sylvania mod 6720fde combo tv/vcr/dvd unit. The tv and  vcr portions are fine but no color on just the dvd.  I have tried unplugging the unit for 12 hours and replugging in at the manufacturers suggestion, but to no avail. Any suggestions?

thanks

combo