Last time someone built me some stairs I said I don't want any squeaks. They were fit tight, he used tons of glue. They still squeeak
As for the TV that's a pet peeve of mine. It's aesthetically annoying, seems to be functionally problematic and always puts the TV too high off the ground. But, I guess the customer gets to put it where they want.
Nice work regardless. Great to see stuff done right...
-spence