This thread is EXACTLY what I was looking for today, so thank you for having it in here.
I am considering doing the Chromecast thing here in the near future. As a big 49ers fan, I am going to be OK for the first few weeks as far as seeing them on cable TV/local TV here in Tampa, but I know I'll eventually have to watch them via NFLST Max (from my Madden 25 anny edition) due to them not being on, so I need to eventually prepare for that.
The good thing is once you log into NFLST Max, you get that looping video commercial playing so I can definitely test it out and tweak it all up for how I want it, then let it go. Provided it is between Sunday and Thursday (or whatever the cutoff is before ThNF), I can watch those 30-minute game replays and really take it for a whirl.