I already use the Panasonic BP-UB424 UHD/4K player to my complete satisfaction. However, since I "absolutely" still "need "* a Blu-Ray player (* = see below) I ask for safety's sake: Do the two Panasonics or their remote controls get in each other's way? I don't think so, as the remote controls can be set accordingly, if I remember correctly. Thank you very much and I wish you a nice, cool day. *(It's great, very useful and more than just convenient for watching a lot of films - which I enjoy very much!)