Semifinals, Group 1
America's Got Talent · Season 4 · Episode 21
The semifinals kick off with the first 10 acts from the Top 20 taking the stage.
Episode Details
Air date, runtime, timezone, and episode position.
Season
4
Episode
21
Air Date
01/Sep/2009
Air Time
20:00
Runtime
85 min
Overview
Episode summary.
The semifinals kick off with the first 10 acts from the Top 20 taking the stage.
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