January 2, 1978
Episode 1 of Season 4 premiered on January 2, 1978
January 3, 1978
Episode 2 of Season 4 premiered on January 3, 1978
January 4, 1978
Episode 3 of Season 4 premiered on January 4, 1978
January 5, 1978
Episode 4 of Season 4 premiered on January 5, 1978
January 6, 1978
Episode 5 of Season 4 premiered on January 6, 1978
January 10, 1978
Episode 6 of Season 4 premiered on January 10, 1978
January 12, 1978
Episode 7 of Season 4 premiered on January 12, 1978
January 16, 1978
Episode 8 of Season 4 premiered on January 16, 1978
January 17, 1978
Episode 9 of Season 4 premiered on January 17, 1978
January 18, 1978
Episode 10 of Season 4 premiered on January 18, 1978
January 23, 1978
Episode 11 of Season 4 premiered on January 23, 1978
January 24, 1978
Episode 12 of Season 4 premiered on January 24, 1978
January 25, 1978
Episode 13 of Season 4 premiered on January 25, 1978
January 26, 1978
Episode 14 of Season 4 premiered on January 26, 1978
January 27, 1978
Episode 15 of Season 4 premiered on January 27, 1978
February 4, 1978
Episode 16 of Season 4 premiered on February 4, 1978
February 6, 1978
Episode 17 of Season 4 premiered on February 6, 1978
February 14, 1978
Episode 18 of Season 4 premiered on February 14, 1978
February 21, 1978
Episode 19 of Season 4 premiered on February 21, 1978
February 22, 1978
Episode 20 of Season 4 premiered on February 22, 1978
March 1, 1978
Episode 21 of Season 4 premiered on March 1, 1978
March 7, 1978
Episode 22 of Season 4 premiered on March 7, 1978
March 15, 1978
Episode 23 of Season 4 premiered on March 15, 1978
March 28, 1978
Episode 24 of Season 4 premiered on March 28, 1978
March 30, 1978
Episode 25 of Season 4 premiered on March 30, 1978
March 31, 1978
Episode 26 of Season 4 premiered on March 31, 1978
April 3, 1978
Episode 27 of Season 4 premiered on April 3, 1978
April 4, 1978
Episode 28 of Season 4 premiered on April 4, 1978
April 24, 1978
Episode 29 of Season 4 premiered on April 24, 1978
April 25, 1978
Episode 30 of Season 4 premiered on April 25, 1978
April 26, 1978
Episode 31 of Season 4 premiered on April 26, 1978
May 2, 1978
Episode 32 of Season 4 premiered on May 2, 1978
May 3, 1978
Episode 33 of Season 4 premiered on May 3, 1978
May 10, 1978
Episode 34 of Season 4 premiered on May 10, 1978
May 15, 1978
Episode 35 of Season 4 premiered on May 15, 1978
May 16, 1978
Episode 36 of Season 4 premiered on May 16, 1978
May 17, 1978
Episode 37 of Season 4 premiered on May 17, 1978
May 18, 1978
Episode 38 of Season 4 premiered on May 18, 1978
May 19, 1978
Episode 39 of Season 4 premiered on May 19, 1978
May 25, 1978
Episode 40 of Season 4 premiered on May 25, 1978
May 26, 1978
Episode 41 of Season 4 premiered on May 26, 1978
May 29, 1978
Episode 42 of Season 4 premiered on May 29, 1978
May 30, 1978
Episode 43 of Season 4 premiered on May 30, 1978
May 31, 1978
Episode 44 of Season 4 premiered on May 31, 1978
June 1, 1978
Episode 45 of Season 4 premiered on June 1, 1978
June 2, 1978
Episode 46 of Season 4 premiered on June 2, 1978
June 8, 1978
Episode 47 of Season 4 premiered on June 8, 1978
June 9, 1978
Episode 48 of Season 4 premiered on June 9, 1978
June 12, 1978
Episode 49 of Season 4 premiered on June 12, 1978
June 13, 1978
Episode 50 of Season 4 premiered on June 13, 1978
June 14, 1978
Episode 51 of Season 4 premiered on June 14, 1978
June 16, 1978
Episode 52 of Season 4 premiered on June 16, 1978
June 26, 1978
Episode 53 of Season 4 premiered on June 26, 1978
June 29, 1978
Episode 54 of Season 4 premiered on June 29, 1978
June 30, 1978
Episode 55 of Season 4 premiered on June 30, 1978
September 11, 1978
Episode 56 of Season 4 premiered on September 11, 1978
September 12, 1978
Episode 57 of Season 4 premiered on September 12, 1978
September 20, 1978
Episode 58 of Season 4 premiered on September 20, 1978
September 25, 1978
Episode 59 of Season 4 premiered on September 25, 1978
October 3, 1978
Episode 60 of Season 4 premiered on October 3, 1978
October 17, 1978
Episode 61 of Season 4 premiered on October 17, 1978
November 3, 1978
Episode 62 of Season 4 premiered on November 3, 1978
November 6, 1978
Episode 63 of Season 4 premiered on November 6, 1978
November 13, 1978
Episode 64 of Season 4 premiered on November 13, 1978
November 14, 1978
Episode 65 of Season 4 premiered on November 14, 1978
November 15, 1978
Episode 66 of Season 4 premiered on November 15, 1978
November 16, 1978
Episode 67 of Season 4 premiered on November 16, 1978
November 17, 1978
Episode 68 of Season 4 premiered on November 17, 1978
November 20, 1978
Episode 69 of Season 4 premiered on November 20, 1978
November 21, 1978
Episode 70 of Season 4 premiered on November 21, 1978
November 22, 1978
Episode 71 of Season 4 premiered on November 22, 1978
November 27, 1978
Episode 72 of Season 4 premiered on November 27, 1978
November 28, 1978
Episode 73 of Season 4 premiered on November 28, 1978
December 4, 1978
Episode 74 of Season 4 premiered on December 4, 1978
December 5, 1978
Episode 75 of Season 4 premiered on December 5, 1978
December 6, 1978
Episode 76 of Season 4 premiered on December 6, 1978
December 7, 1978
Episode 77 of Season 4 premiered on December 7, 1978
December 8, 1978
Episode 78 of Season 4 premiered on December 8, 1978
December 11, 1978
Episode 79 of Season 4 premiered on December 11, 1978
December 14, 1978
Episode 80 of Season 4 premiered on December 14, 1978
December 20, 1978
Episode 81 of Season 4 premiered on December 20, 1978
December 22, 1978
Episode 82 of Season 4 premiered on December 22, 1978
December 26, 1978
Episode 83 of Season 4 premiered on December 26, 1978