Hand #1, fold unless read dictates otherwise.
Hand #2, I check behind on the river. I don't see any hand that you beat that raises the turn and calls the river. I take my free showdown. You may be missing some value on 77-TT here, but not as much as you'll lose to any 9 or luckbox flush. Opp's line sticks of a 9 at this level i.e. check flopped trips, raise turn bet, check river to person in position showing great strength by smooth calling $8.