Here are the broadcast times of "Grimmsberg" on 29.10.2011 between episodes of "The Simpsons":

2D:
Episode 1: 20:42 - 20:48
Episode 2: 21:16 - 21:25
Episode 3: 21:52 - 21:57
Episode 4: 22:24 - 22:30
Episode 5: 22:59 - 23:06
Episode 6: 23:32 - 23:39
Episode 7: 00:05 - 00:13
 
3D:
All episodes in one piece: 30.10.2011 from 01:55 a.m.
(in the night from Saturday to Sunday)