I just canceled my subscription but I used to like doing a marathon of my favorite fighters. Viewing their entire career in chronological order. Sometimes, if the weigh-ins were cool I go back and forth to Youtube to squeeze those in before I tune into the fight. Also some fighters have old school bareknuckle fights, like I'll look up the fighters, dates of the event on wiki, and find that event (like IVC, International ValeTudo Comp) has names like Chuck or Wanderlei fighting bare knuckle.
I did Trilogies, Build ups, and Upsets also. Bj vs Hughes trilogy. I'll try to watch Hughes' Run and at the end Watch Penn vs Hughes1 just to get the feel of what a crazy accomplishment those were. Or Cain vs JDS trilogies. I've done Anderson's Run in the UFC and at the same time watching Weidman coming up and crashing Anderson's party.
If you go under FightPass, ORIGINALS, there are good amount of mini documentaries of certain fighters. (Pioneers of MMA, Fightography, UFC presents, etc..)
If you want to check out TUF, Season Five and 9 or 10 (one with Rampage) is good.
Watch Pride Event or UFC events. Strikeforce has some great fights. They also added GLORY and Eddie Bravo Grappling thing.
IDK, try'n to get the bang for my buck but I guess in the end that's why I canceled it. I'd just get it for one month and watch the shit out of everything and cancel it.