All 24 episodes from the series's debut season--including "Fly the Unfriendly Skies," "Mom, I L-L-Love You," "His Busiest Season," "The Two Loves of Dr. Hartley," and "Who's Been Sleeping on My Couch?"--are featured in a three-disc set. 10 1/2 hrs. total. Standard; Soundtracks: English Dolby Digital mono, Spanish Dolby Digital mono; Subtitles: English, Spanish. **24 episodes on 3 discs. 10 1/2 hrs.**

All 24 episodes from the fourth season--including "The Longest Good-Bye," "Carol's Wedding," "Who Is Mr. X?," "Over the River and Through the Woods," and "Peeper Two"--are featured in a three-disc set. 10 1/3 hrs. total. Standard; Soundtrack: English Dolby Digital mono; Subtitles: English, Spanish; audio commentary on selected episodes; featurette; gag reel. **24 episodes on 3 discs. 10 1/3 hrs.**

All 24 episodes from the second season--including "Last TV Show," "Emily in for Carol," "A Love Story," "Confessions of an Orthodontist," and "A Matter of Principal"--are featured in a three-disc set. 10 3/4 hrs. total. Standard; Soundtracks: English Dolby Digital mono, Spanish Dolby Digital mono; Subtitles: English, Spanish; audio commentary by Newhart, others; featurette. **24 episodes on 3 discs. 10 3/4 hrs.**

All 24 episodes from the third season--including "Big Brother Is Watching," "Ship of Shrinks," "Life Is a Hamburger," "The Way We Weren't," and "The Ceiling Hits Bob"--are featured in a three-disc set. 10 1/4 hrs. total. Standard; Soundtracks: English Dolby Digital mono, Spanish Dolby Digital mono; Subtitles: English, Spanish; featurette; audio commentary on selected episodes. **24 episodes on 3 discs. 10 1/4 hrs.**