Not content with winning hearts and saving pooches with his appearances on cable TV's Emergency Vets (on Animal Planet), funnyman/animal doc Kevin Fitzgerald stages an irregular (very) variety show that seems to have found a home on major holidays at the Comedy Works in Larimer Square. What's not to love about the Love Show? An evening's lineup always includes a sampling of Fitzgerald's comic antics -- on a recent outing, he sang Doris Day's "Que Sera Sera" backed by the Well Hungarians, and then offered a Michael Flatley tap dancing imitation (wearing see-through tights). After that, he transformed himself into the emcee to introduce a cavalcade of Denver's most unusual performers, including a gaggle of jugglers, a roller-skating bird, a smoking pig and Shelvis, the fabulous female Elvis impersonator. "Denver has a lot of talent out there," Fitzgerald insists. And he's bringing that talent to you, one wacky act after another. Take this doctor's advice: Variety is the spice of life.