Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Load put on consumer rather then tech support -- beware...

I was VERY DISAPPOINTED with this unit. I already have a Samsung 3500, which works very well. The new "feature" for the 4600 (really anything above a 3650) is that the input needs to be changed to LINE when you want to watch a DVD/VHS; and changed BACK when you want to watch cable. As this was purchased for my 80 year old parents, they were too confused to have to keep changing back, and did not use the unit.I called Samsung tech support (who were super), and they said they are getting a boat load of calls on this very issue. It seems it was easier/cheaper for their techies to develop with the consumer having to do the switching manually.I WOULD NOT RECOMMEND this model. There are too many other choices that work well and don't have this quirk.