Free trial of NBA League Pass is available again. Starting today, ends 27th of January. Watch games live and in HD, or watch archived games if you work during the day. I'm subscribed for the season and highly recommend it.
I believe that you need to provide credit card details, and it automatically subscribes you to the monthly plan ($30 a month) if you don't cancel the subscription by the 28th. So you might want to set a reminder to cancel it in your phone.
Dunno, that's a $150 gamble if you don't cancel in time. I forgot to cancel my skype trial but that was only $10