**** The Edinburgh Fringe can be overwhelming and very confusing. This year, amongst the record 4,202 shows at 299 venues, there are three musicals based on the hit HBO TV series Heated Rivalry. Puck Bunnies: A Heated Rivalry Drag Musical Parody, Heated Rivalry: The Musical Parody,  and Heated Rivalry: The Unauthorised Musical Parody. Following its…