I just bought the UN46C7000 and had Comcast out here checking everything out because I too can't watch rental movies on VUDU or Cinema Now because the connection speed is only 2-5mbps and I have 22mbps at the WIFI connector going into the TV from my router (Wired). If I disconnect the Cat-5 cable on the back of the TV and connect it directly to my laptop I get 22mbps. Connect it back to the TV and run the InternetTV test I get 2-5mbps. What is up with that? Called Bestbuy - no clue, called samsung support -no clue, they want a local home theater electronics contractor to come out to the house (Oh great another appointment). Anyone have a clue why the eithernet card on this TV is so slow? Any Settings I missed? I got a feeling this one is going back.