I just do not know where to turn, invested so much money in a good 4K tv, the Q9FN from Samsung, and I have had nothing but problems. The TV is great with all non-Directv sources. I have an HR54 receiver and recently added a CK-61 client for 4K. Even with the HR54 receiver alone, I get bad periodic judder on many stations. The biggest channel offenders that come to mind are FX movies, TBS, TNT, Lifetime, USA. I have a feeling it is anything to do with the 24 fps content. I have looked around the internet a lot at various forums and I believe the conclusion I must come to is that the over compression of Directv signal makes some of the 24 fps content unwatchable on today's higher end newer TVs? No problems with ESPN, CNN, Fox News, etc. I can turn auto motion plus (the Samsung motion smoother) off, but that just produces a nauseating blurry picture with movement. I have swapped out HR54 a few times, had my TV main circuit board replaced with same result. Is there ever a chance Directv will change their compression technique? Has anyone found a solution to any judder they have experienced?