If you’ve got an old black and white TV, it’s probably not useful for much. There are precious few analog broadcasters left ...
Arguably, the ATmega328P is being left behind as ‘the Arduino processor’ because Arduino’s are following the rest of the world and going 32bit.
Arduino enthusiasts wanting a more powerful Arduino Nano alternative development board may be interested in the new Super Nano Plus and Super Nano Arduino compatible boards created by Infunity Box.