Film, television, and singing star Doris Day is famous for her cheerful optimism and her audience appeal and both are readily apparent in this final 1972-1973 season of her television sit-comThe Doris Day Show.  A modern widow employed as an editor at the "Today's World Magazine" and seriously involved first with Dr. Peter Lawrence (Peter Lawford) and later Jonathan Rusk (Patrick O'Neal), Doris Day (Doris Martin) is a spunky middle-aged woman with a flair for getting great stories from her interviews and ending up in the middle of sticky situations.  Season 5 opens with Doris' stingy and ever-meddling boss Cy Bennett (John Dehner) urging Doris and Peter to get married following years of serious courting in "No More Advice, Please," but neither Doris nor Peter sees any need to change what seems to them to be a perfect situation.  Tenacious and willing to go to great lengths to get a great story, Doris' fakes an injury to interview a notorious thief in "Jimmy the Gent" and pretends to be an actress in "The Hoax."   Doris' compassion for others repeatedly lands her in all sorts of crazy situations from pet-sitting a Syndicate head's dog in "Follow the Dog" to putting on an elaborate fashion show to raise money for Peter's hospital in "Hospital Benefit," endangering her job and apartment to care for a stray dog in "It's a Dog's Life," compromising her integrity by ghost writing for a fellow colleague, and risking arrest in order to save her uncle from a forgery conviction in ""The Magnificent Fraud."  Romance and jealousy are regular themes as is Doris' dedication to her job and her friends, Cy's stinginess and propensity for taking credit for the actions and ideas of others, and Doris' innate goodness.  A huge cast of guest stars appearing in the 24-episode season include Andy Griffith, Lee Meriwether, Ed Begley Jr., Julie Adams, Dick Van Patten, Sid Melton, Edward Andrews, Henry Jones, and Bernie Kopell.  Special features include commentary by Doris Day and producer Jim Pierson for "Hospital Benefit" and "It's A Dog's Life," the FrenchDoris Comedie(a French version of "Follow the Dog"), outtake footage, and vintage and new footage of Doris' many humanitarian projects.--Tami Horiuchi