For more than a year now I have been seeing a video flicker on KSTP Ch.5 in the Minneapolis-St.Paul local market. The funny thing is it only happens one time each night for a few seconds and only between 7:20 and 7:40 PM. Since I don't watch that channel every night I don't know if it"s an every night thing or just on the Tuesdays and Wednesdays that I do watch. Has anyone else seen this ?