... had to get a replacement asap and bought a 4 series on accident not realizing it was different lol. Well I thought about it and then looked.. same ribbon cable connection on them. One is a Tcl 65s431 with a lvu650ndel panel. The other is a 65r613 with a lvu650ndbl panel... can I take the panel out of the 4 series and put in the 6 series?? Same ribbon connections... it seems I could but I have no clue..