Among the well-known faces who appeared on the first season of VH1's heartbreaking reality series 'Celebrity Rehab With Dr. Drew,' one looked especially familiar. But his body, formerly so agile, resembled that of a hunched-over (albeit youngish-looking) old man. It was the once-vibrant 'Taxi' actor Jeff Conaway, who looked like he's had a rough time of it since his glory days. Sadly, his first ...