Other discs include ’Veronica Mars’ and ’House, M.D.’

This collection of new-to-DVD TV programs (in stores on Tuesday) is led by Bill Cosby’s first sitcom, which followed his "I Spy" success in the 1960s.

• "The Bill Cosby Show: The Complete First Season" (Shout! 1969-70, not rated, $39.98, four discs). This half-hour sitcom shot on film without a laugh track has Cosby playing an unmarried high school coach, and the show is a very nice showcase for the comic’s gentle humor.

Social issues of the day are also addressed, right from the first episode, with Cosby jogging and getting picked up by police as a crime suspect (which doesn’t end in the expected way), to one about a basketball player whose foul mouth Cosby finds offensive.

Even the theme song is unique, with Cosby grunting zany "scat" sounds. Guests include Cicely Tyson, Wally Cox, Moms Mabley and Louis Gossett Jr. And look for a very funny episode with Cosby stuck in an elevator with a stuffy English teacher - played by Henry Fonda! - and a cleaning woman who doesn’t understand English (Elsa Lanchester). Fonda’s hilarious as they play "20 Questions."

Extras: Full frame, 26 episodes, new interview with Cosby, chapters.

• "Veronica Mars: The Complete Second Season" (Warner, 2005-06, not rated, $59.98, six discs). This is a terrific comedy/mystery series, and a wonderful showcase for the charming and talented Kristen Bell, who plays the title character. She’s a high school outcast/detective who gets involved in several ongoing story arcs - primarily a bus crash that kills several students and may have targeted her - and she also solves single-episode mysteries.

Extras: Widescreen, 22 episodes, featurettes, bloopers, subtitle options (English, French, Spanish), chapters.

• "House, M.D.: Season Two" (Universal, 2005-06, not rated, $59.98, six discs). One of the better medical series, this comedy/drama focuses on the title character, played superbly by Hugh Laurie as the quirky, grumpy, unorthodox and amazingly resourceful title character. His tentative romance with Sela Ward continues, and guests include LL Cool J, Samantha Mathis, Michelle Trachtenberg, Charles S. Dutton and Cynthia Nixon.

Extras: Widescreen, 24 episodes, alternate takes, audio commentaries, featurettes, bloopers, subtitle options (English, Spanish), chapters.

• "Invasion: The Complete Series" (Warner, 2005-06, not rated, $59.98, six discs). This series is a chiller, a variation on "Invasion of the Body Snatchers," as humans are assimilated but retain memories, and mysterious deaths occur. Unfortunately, the entire series is a cliffhanger, since it was neither renewed nor wrapped up when the first season concluded.

Extras: Widescreen, 22 episodes, deleted scenes, featurette, bloopers, subtitle options (English, French, Spanish, Portuguese), chapters.

• "Threshold: The Complete Series" (CBS/Paramount, 2005-06, not rated, $56.99, four discs). This short-lived series was canceled in mid-run midrun last year when it failed to perform, also ending with a cliffhanger that isn’t resolved. Is a spacecraft in the Atlantic Ocean a forerunner to an alien invasion? A U.S. Navy team of scientists is assembled to find out, led by Carla Gugino, Charles Dutton and Brent Spiner.

Extras: Widescreen, 12 episodes (including four that never aired), deleted scenes, audio commentary (on the pilot), featurettes, optional English subtitles, chapters.

• "Conviction: The Complete Series" (Universal, 2005-06, not rated, $59.98, three discs). This interesting but character- and plot-heavy series from Dick Wolf (the "Law & Orders") is another abbreviated series from last year. The focus is on five young district attorneys, all of them pretty self-involved, and the audience probably never cared enough about the characters’ personal lives, which are hardly unique in the soap-opera landscape of modern prime-time TV.

Extras: Widescreen, 13 episodes, character profiles, optional English subtitles, chapters.

• "Blue Thunder: The Complete Series" (Sony, 1984, not rated, $39.95, three discs). Tepid action series based on the "Blue Thunder" movie that starred Roy Scheider, a thriller about a super-helicopter used to fight crime. James Farentino stars here, with Dana Carvey as his sidekick - providing comic relief before Carvey found fame on "Saturday Night Live."

Extras: Full frame, 11 episodes, optional English subtitles, chapters.

• "Arthur’s Missing Pal" (Lionsgate, 2006, not rated, $19.98). PBS animation star Arthur gets his first feature-length show, as he and his friends try to find his missing dog. Also the first "Arthur" cartoon to be digitally animated.

Extras: Widescreen, interactive games, storyboards, language options (English, Spanish), optional English subtitles, chapters.

• "Strawberry Shortcake Berry Fairy Tales" (Fox, 2006, not rated, $14.98). This animated film for the small fry has two episodes, "When the Berry Fairy Came to Stay" and "The Legend of Sherry Bobbleberry," gentle tales of the title character’s adventures with two different fairies.

Extras: Full frame, two episodes, music video, trailers, subtitle options (English, Spanish), chapters.

• "Tot-a-Doodle-Do! School" (Children’s Creative Programming, 2006, not rated, $14.95). Children learn how to behave in school, hear from a kindergartenkindergaten teacher and sing and dance to songs and more on this 30-second disc. For ages 3-7.

Extras: Full frame, chapters.

• "Sesame Street: Elmo’s Potty Time" (Sesame Street, 2006, not rated, $12.98). The little red furry guy helps kids - and parents - with the dreaded childhood ritual of potty training.

Extras: Full frame, interactive storybook, downloadable certificate, parents guide, optional English subtitles, chapters.