Who is Betty?

1. Fixing Up the Fraternity House1957-10-02 2. The Man Without a Family1957-10-09 3. Treasurer's Report1957-10-16 4. The Boys Land in Jail1957-10-23 5. Mystery Shopper1957-10-30 6. Ricky's Big Night1957-11-06 7. Free Flowers1957-11-13 8. Ozzie's Triple Banana Surprise1957-11-20 9. Fourteen Mile Hike1957-12-04 10. Tuti-Fruiti Ice-Cream1957-12-11 11. The Christmas Tree Lot1957-12-18 12. Ricky Goes on TV1957-12-25 13. The Trophy1958-01-01 14. The Road Race1958-01-08 15. David and the Stewardess1958-01-15 16. The Picture in Rick's Notebook1958-01-22 17. Harriet's Dancing Partner1958-01-29 18. The Safe1958-02-05 19. David and the Men's Club1958-02-12 20. Who is Betty?1958-02-19 21. The Old Band Pavilion1958-02-26 22. The Practical Joker1958-03-05 23. Scavenger Hunt1958-03-12 24. The Dating System1958-03-19 25. The Closed Circuit1958-03-26 26. The Top Gun1958-04-02 27. The Record Trout1958-04-09 28. The Bachelor1958-04-16 29. Code of Honor1958-04-23 30. Ricky is Micky1958-05-07 31. Rick's Chemistry Grade1958-05-14 32. The Magic of Three1958-05-21 33. The International Set1958-05-28 34. Ozzie and the Bridge Group1958-06-04 35. A Cruise for Harriet1958-06-11