I bought a Daewoo DUB2850 last summer for my elderly parents and until now it has performed fine. In the past couple of weeks there has been in intermittent problem on certain digital channels in that the picture and sound will disappear for a couple of seconds, the channel's details will then re-appear at the foot of the screen (the signal strength will state very briefly 'no signal') and then the picture/sound are restored to health! I have witnessed this when I have visited my parents and it is extremely annoying as it can happen as often as every 15 minutes, although my parents say that some days it won't do it for hours. They also say that it only seems to affect commercial channels - ITV1,2,3, Ch4, Ch5 etc. but BBC channels are fine. They have just had a new aerial and cable fitted but apparently this fault was evident prior to that. I have also tried, in vain, to rectify the problem by going through the tuning process again from scratch. Although the TV is within warranty I thought I'd try to establish if anyone else has suffered this problem before I call in Daewoo as its such a hassle arranging for items this size to be picked up.