Rob Reiner just celebrated his 75th birthday on March 6, 2022, and prior to 1984, he was best known as Carl Reiner’s son and Michael ‘Meathead’ Stivic from Norman Lear’s all-time classic sitcom “All in the Family” (1971 – 1979). However, in 1984, Rob spread his comic-thespian wings, flew to the big screen, and directed his first theatrical film, “This Is Spinal Tap”, a fabulously funny and fake documentary about a fictional British heavy metal band and their disastrous U.S. tour. Yes, Reiner created an all-time classic comedy of his…