A good rule of thumb is to go to the NHL Gamecenter page for the game and put the information from the header in your thread title. A key thing for many of us is who is carrying the game broadcast, both for the local market and the diaspora.
Teams (I think because Buffalo listed second they are the designated home team; think NJD @ BUF)
In this case, mention that it's in Prague
Date, Time (make sure to specify ET or whatever time zone you want... sometimes I'll put the CT time up since that's where I live)
The TV coverage (NHL for us out-of-towners, MSG-B for Buffalo, MSGSN for NJ)
And then a lot of people would put that it will be on WGR Radio
Thus endeth the mansplaining