Need help with these standard pp hands

[chickenbeaks]

CO is a calling station. No read on SB.

Hero is UTG with 88
Hero calls, 3 calls, SB raises, Hero calls, 2 folds (!!), CO calls.

Pot 8.5 SB
Flop: [6s 4s 4c]
SB bets, Hero raises, CO calls, SB reraises, Hero calls, CO calls

Pot: 8.7BB
Turn: [3h]
SB bets, Hero folds

Fold to flop RR here?

Hero is UTG with Td Tc
Hero raises, 2 calls, BB calls

Pot: 8 SB
Flop: [Qc 8s Ks]
BB checks, Hero bets, UTG+1 calls, BB calls.

Pot: 5.5 BB
BB checks, Hero bets, UTG calls, BB folds

Pot: 7.5 BB
Hero checks, UTG+1 checks

Only hands I beat that might call are 8s and a smaller pp. Turn bet ok? (Fold to turn raise?) River check ok?

[waynethetrain]

Your second hand history does not contain the actual turn and river cards.

[chickenbeaks]

Oops. [img]/images/graemlins/blush.gif[/img]

Hero is UTG with Td Tc
Hero raises, 2 calls, BB calls

Pot: 8 SB
Flop: [Qc 8s Ks]
BB checks, Hero bets, UTG+1 calls, BB calls.

Pot: 5.5 BB
Turn: [Kc]
BB checks, Hero bets, UTG calls, BB folds

Pot: 7.5 BB
River: [2h]
Hero checks, UTG+1 checks

[grjr]

In that first hand SB could have had 2 big spades as well as a bigger pair. Does anyone else think about calling down the turn and river? (assuming no spade on the river--unless it's an 8)