Does anyone know why if I set my TV Set on Channel 3 along with the converter box on Channel 3 that the Horizontal White Lettering with a black or dark background on a commercial wants to shake and wiggle? It doesn't do this if you change the TV channel to 4 and the box to 4. It also acts up in the above manner when you watch Jeopardy and they show the white clue in the blue box. The only converter box that I have tried and it doesn't do this on Channel number 3 is the Lasonic Converter Box but that is the one with the mentioned interference.