I bought a brand new Samsung 46" 240 refresh rate UN46D7000 3D HDTV with the correct expensive monster cables about 30 days ago. The picture looks beautiful on HD local stations and premium movie channels. Picture is also beautiful on the blu-ray player. But the 2 HD Hallmark channels are jittery and jumpy. TBS is also jittery. Not sure about other HD channels. I also had Directv replace my receiver with a new HR24 and new cabling 2 weeks ago for another issue. The installer made sure all settings were ok on the receiver. The jumpiness continued. I have played with all the picture options on the TV. It clears up on game mode. But I do not want the tv game mode for watching HD. Do others have issues with Hallmark channels jitter on large tvs or should I return my TV? The jitter is on most seen on the movies shown on Hallmark since this tv day 1. Any ideas is appreciated. My 32" HD Sony does not have the jitter.