Beth Broderick was an “inch” away from being bitten by an alligator filming an episode of ‘Sabrina the Teenage Witch’. The 65-year-old actress – who starred as Melissa Joan Hart’s titular character’s aunt Zelda Spellman in the supernatural sitcom from 1996 until 2003 – could have ended up with a nasty injury when she had to walk with the reptile on a leash for one scene. The crew didn’t feel the alligator was “moving enough” and decided to poke it – but the animal went berserk. Fortunately, it bit a sofa and not Beth. She recalled to PEOPLE: “And the people didn’t think the alligator was movin…