Thanks to all for posting in this thread, and especially to @Wiidesire for the great guide.
I resisted as much as I could with trying out (and paying for 
) MCEBuddy, but after all the hassle I was getting with Plex’s built-in comskip – older version, weird processing artifacts, commericials that didn’t get detected the first time but on a second time it did – I made the jump.
Having all the information here made it a snap. Much respect and appreciation to all. 
