Season 4 Episodes
1. Auditions 1
April 17th, 20101 hr
2. Auditions 2
April 24th, 20101 hr
3. Auditions 3
May 1st, 20101 hr
4. Auditions 4
May 8th, 20101 hr
5. Auditions 5
May 15th, 20101 hr
6. Auditions 6
May 23rd, 20101 hr
7. Auditions 7
May 29th, 20101 hr
8. Semi Final 1
May 31st, 20101 hr
Ant and Dec present the first of the Britain's Got Talent live semi-finals. This was the first time Britain's Got Talent aired in HD on ITV 1 HD.
9. Semi Final 1: The Results
May 31st, 20101 hr
It is decision time for the first eight Britain's Got Talent semi-finalists as the result of the public vote is announced. Only two acts will go through to Saturday's final for a chance to compete for the 100,000-pound prize and a slot to perform at the Royal Variety Performance.
10. Semi Final 2
June 1st, 20101 hr
11. Semi Final 2: The Results
June 1st, 20101 hr
12. Semi Final 3
June 2nd, 20101 hr
13. Semi Final 3: The Results
June 2nd, 20101 hr
14. Semi Final 4
June 3rd, 20101 hr
15. Semi Final 4: The Results
June 3rd, 20101 hr
16. Semi Final 5
June 4th, 20101 hr
17. Semi Final 5: The Results
June 4th, 20101 hr
18. Final
June 5th, 20101 hr
