I recently purchased a toshiba v295ku dvd/vhs combo unit and a dynex 20" tv together. the video playback on a vhs tape drops out after about 1 second of playback. I have swapped both the toshiba and the tv, but still the same problem. the toshiba works fine with 2 other tv's. I know they are both low end units, but can't understand why they won't play together. Any suggestions?