Seasons 1-3 are available on Amazon Prime. I'm just rewatching them. They were originally shown on Really in the UK - I was a big fan from the very start
Then the show got dropped by TNT I think it was and one of the 'hosts' left the show but Oxygen in the USA picked it up and seasons 4 & 5 are repeated fairly regularly on CBS Reality here. Bizarrely, we got the latter part of season 5 before the USA on CBS Reality - I still don't understand how that happened
Season 6 is due to start in the USA next month. I'll be watching via my illegal download group
but it could well be on CBS Reality very soon afterwards.
Tulsa are my favs too! Justin Ritter in particular
although he's not in Homicide anymore