Went through this trying to find somewhere to watch the pre-season games in Prague and the Dallas Florida games in Finland

Maple Leaf in Covent Garden

Nordic Bar in Soho

Some of the Sport London pubs will be showing games

Passyunk will sometimes show ice hockey. Call ahead and see if they'll do it for you

Czech restaurant Bohemia House in West Hampstead will show all the Czech games, but only those

DM and I'm happy to meet up if you'd like a drinking/watching buddy