Any ideas where they'll show it in Brighton, Brighton Red? My first thoughts are The Lecturn on Lewes Road.
The standard places people head for the football are the King and Queen, the Font and Walkabout. But for something like the league one play-offs where there's unlikley to be too much interest it can be better to head somewhere a bit smaller and have a word beforehand to see if they'll put it on with sound for you.
For the exeter game I headed to Varsity. The guy put it on the screen I was sat in front of, turned off the music in that area of the pub and put the volume up for me. Pints of Fosters were £1. I was fucking happy! (apart from the fact it was fosters..)
I've never been upstairs at the Lectern .. just make sure Celtic aren't playing!