I also used to love it and watched it religiously. However, the rot set in far earlier than that, IMO.
The decline started when Murray Walker retired, a lot of the entertainment was down to his contagious enthusiasm and his Murrayisms.
The 2004 season ended it for me, with total Ferrari dominance, very little excitement, zero unpredictability. (That was the season when Schumi and Barrichello orchestrated photo finishes). I resented the 8+ hours a month I was spending watching it.
Why would anyone watch unlikeable primadonna drivers driving to tolerances of thousandths of a second, on identikit circuits that have been designed mostly by one guy? Where's your modern-day equivalent of the old Hockenheimring where teams have to compromise between handling and top speed? Where's your Schumacher limping into the pits on 3 wheels to punch Coulthard?
I'm guessing I'm unlikely to get anything out of this documentary.