Digital download includes:

1. Knock-Knock: Ears

2. Hitch-Hiking Rabbit

3. Knock-Knock: Closure

4. Doctor Joke

5. Knock-Knock: Europe

6. Traveling Dog

7. Knock-Knock: Lettuce

8. Dining Duck

9. Knock-Knock: Utah

10. Cat Robber

11. Knock-Knock: Sarah

12. Monster's Dinnertime

13. Knock-Knock: Eskimo

14. Chicken's Medicine

15. Knock-Knock: Leaf

16. Grandfather Plant

17. Knock-Knock: B-4

18. Catcher's Mitt

19. Knock-Knock: Wendy

20. Turtle Shell

21. Knock-Knock: Nunya

22. Green & Dangerous

23. Knock-Knock: Ben

24. Hula-Hoops

25. Knock-Knock: Pea

26. Witch Doctor's Knee

27. Knock-Knock: Beets

28. Grandmother's Rocking Chair

29. Knock-Knock: Radio

30. Cat's Who Eat Lemons

31. Knock-Knock: Boo

32. Walls Sent to Jail

33. Knock-Knock: Howl

34. Shoes to Sleep

35. Knock-Knock: Cows

36. One Bacteria to Another

37. Knock-Knock: Mary

38. Angel Catches Cold

39. Knock-Knock: Wanda

40. Cat Car

41. Knock-Knock: Toby

42. Plant's Favorite Drink

43. Knock-Knock: Jose

44. Lion

45. Knock-Knock: Denise

46. Bank Robbers

47. Knock-Knock: Ida

48. Stale Donuts

49. Knock-Knock: Atch!

50. Bear's Winter Clothes

51. Knock-Knock: Cynthia