Game 4 will surely be a crucial one. If the Wolves win, this series might end up in 6 games favoring them, but if the Nuggets manage to steal one again on the road, there will be a Game 7. Only my prediction. 
I'm glad the game will be televised on TNT so I can watch it. It might be the biggest game of the playoffs. If Minnesota wins, I think they might be on their way to an NBA title. However, if they let the Nuggets get another win and tie up the series, they'll have the momentum and I think it will be lights out for Minnesota. I personally want to see Minnesota win so I'll be routing for them, but Denver is still young and athletic. If they have figured out how to stop Ant, the Timberwolves might be in some trouble. The next two games in this series are going to be HUGE for both teams, but game 4 will be the Timberwolves chance to seal it up.