Hot Yoga?

Sitting around an awful lot this week. I did get walks organized, but would like a full-on exercise class. Maybe the hot yoga which is so hot right now. Bikram with a storefront in Falmouth. I figure it's a fad that will go away soon, so I should try it. Oooo, online they want me to join right away for 20 sessions!
Single class $17, unlimited week, $25 - but what if I hate it?
Maybe it's like laughter yoga - they say you should try it for at least three sessions to see if you like it.
I have tried yoga many times and seldom liked it.