For the record, this formula:
=if(isblank($A2),FALSE(),$A2=if(ifna(match(indirect(address(row(),column($A$1),4)),indirect("PriorT"),0),-1)>1,indirect(address(row(),column($A$1),4)),FALSE()))
to make sure that an entire row in a Google Sheet would highlight based on whether or not a cell in the first column, the name of the movie, matched ANY cell in another column, a list of names of movies watched,
took me far far too long to figure out today for the value of what I was doing.
AND I suspect there is a much better way to do it, which just annoys me more. Somewhere, someone has made an illustrated guide to doing this that takes 30 seconds to read. I just couldn’t find it.
It took me a good hour at least to find someone saying you had to put named ranges inside quotes inside an indirect function for conditional formatting when you don’t have to do that inside a standard formulae.
I kind of hate the way you input conditional formatting just a little, to be honest. Like, they really couldn’t figure out a way to preview how things are working???