Season 42 aired between 26 Sep 2011 and 06 Feb 2012, 26 episodes.
Episodes
E01
Failure to Launch
26 Sep 2011
E02
Rocco's Boat
27 Sep 2011
E03
The BubbleFest
28 Sep 2011
E04
Observe, Record, Annoy
29 Sep 2011
E05
The Shape O'Bots
30 Sep 2011
E06
Latinization of Marco
04 Oct 2011
E07
Humpty Dumpty's Big Break
07 Oct 2011
E08
Goodbye Pacifier
11 Oct 2011
E09
The Good Birds Club
17 Oct 2011
E10
Big Bad Wolf Huffs and Puffs Slimey
18 Oct 2011
E11
Baby Bear's Baby Doll
21 Oct 2011
E12
Elmo and the Monarch Butterfly
28 Oct 2011
E13
Siblings
09 Nov 2011
E14
Letter 'R' Mystery
11 Nov 2011
E15
Cast Iron Cooks
18 Nov 2011
E16
Getting Centered
25 Nov 2011
E17
A Prince of a Frog
01 Dec 2011
E18
Elmozilla
15 Dec 2011
E19
Super Maria
26 Dec 2011
E20
The Flood
29 Dec 2011
E21
Falling Leaves
30 Dec 2011
E22
The All Our Senses Club
04 Jan 2012
E23
What's in Big Bird's Nest?
19 Jan 2012
E24
Rhyming Block
25 Jan 2012
E25
Furry Potter
02 Feb 2012
E26
Elmo Wants to Have a Ball
06 Feb 2012