It looks like my 1080p is about to go out and I am going to get a 4k TV but I hope it lasts until the CES 2017 models come out. Does AT&T offer free upgrades to the HR-54 and C61k? and 4k dish or do they still charge for it? I wonder if getting a 4k RVU TV would be better than the client box and if the 4k and HD PQ would be the same on either one? Thanks.