“Why do I have to rescan for cable channels??? I have had this for 2 or 3 weeks and it worked fine for the 1st couple of weeks now 3 or 4 times in as many days I flip through the cable channels and some are blank I have the cable connection direct to the TV no box required 1st time I called my provider they said to rescan for channels now I have had to do this 3 or 4 times in as many days I really don't want to have to scan for channels a 15 minute or more process everyday before I use this TV”