1951 Zenith Porthole TV CRT swap, and 'How Many Brighteners Are Too Many?'

Today we experimentally determine how many brighteners are too many, then round that answer to zero and replace a CRT...Enjoy.
Well, it wasn't possible to edit a video by Friday and FINALLY get my ETF swapmeet sale items chosen and listed so this video is a bit late. Also this video got edited and posted now because it had the least raw footage to piece together into something.