A river value-bet, a check-raise bluff and a good call

I think this limit holdem hand from the 50-100 game is pretty interesting, especially the play in the river.

PokerStars Game #24784067754: Hold'em Limit ($50/$100) - 2009/02/10 7:14:58 ET
Table 'Maia IV' 6-max Seat #2 is the button
Seat 1: sirio11 ($2892 in chips)
Seat 2: petknet ($3916.50 in chips)
Seat 3: eso_memory ($4750 in chips)
Seat 4: cherry1020 ($1382.50 in chips)
Seat 5: Zzeigler ($6336.50 in chips)
Seat 6: THE D0NAT0R ($13071 in chips)
eso_memory: posts small blind $25
cherry1020: posts big blind $50
*** HOLE CARDS ***
Dealt to sirio11 [4h 4s]
Zzeigler: folds
THE D0NAT0R: folds
sirio11: raises $50 to $100
petknet: folds
eso_memory: folds
cherry1020: calls $50
*** FLOP *** [3c 8s 7s]
cherry1020: checks
sirio11: checks
*** TURN *** [3c 8s 7s] [Tc]
cherry1020: bets $100
sirio11: calls $100
*** RIVER *** [3c 8s 7s Tc] [8d]
cherry1020: checks
sirio11: bets $100
cherry1020: raises $100 to $200
sirio11: calls $100
*** SHOW DOWN ***
cherry1020: shows [4d Ks] (a pair of Eights)
sirio11: shows [4h 4s] (two pair, Eights and Fours)
sirio11 collected $822 from pot
*** SUMMARY ***
Total pot $825 | Rake $3
Board [3c 8s 7s Tc 8d]
Seat 1: sirio11 showed [4h 4s] and won ($822) with two pair, Eights and Fours
Seat 4: cherry1020 (big blind) showed [4d Ks] and lost with a pair of Eights