I have a TV from a reputable brand that was replaced due to it having issues at times.
It's been in my loungeroom for 2 weeks now (65") and hasn't been picked up or them even scheduling a pickup since letting them know I received the replacement.
At what stage do I just keep it and use it in a spare room?
Honestly? As long as I'm sure I'm not gonna drop it and break it (or break it in any other way), I'd be using it in a spare room already.