Unfortunately not, I'm sorry.

No.

Yes, a simple and handy black remote control (with batteries) plus a 220V mains cable ...

Hello, I use the TV as a monitor for my PC, as my PC runs non-stop the TV switches off automatically.

No, only USB media input ... see also: https://www.bedienungsanleitu.ng/panasonic/tx-39gw334/anleitung?p=63 https://www.bedienungsanleitu.ng/panasonic/tx-39gw334/anleitung?p=74

Bought this unit, measured from the foot the height for the 39" model is 56.5cm ... see also https://www.panasonic.com/de/consumer/flachbildfernseher/full-hd-hd-tv/gw334-series/tx-39gw334.html