It might seem like only a short time in years, but the majority of the aircraft types and airlines featured in the footage have long since been lost forever....so when you consider it is "only" a couple of decades ago, the fact is that flying on airliners has changed rapidly in a perceivably short space of time. A few of the featured airlines featured have been reincarnated more than once but most have fizzled into nothing, many of them beloved by their regular pax.
It may seem trivial nonsense to some but there are many others who wish the old clunkers that didn't depend on computers as heavily as nowadays were still flying...with a human being making decisions and not a box of microchips in a compartment under the lavatory. The old DC10/MD11 and the L1011 were wonderful (yes they had some computerisation but not to the extent that you have now on aircraft....and trips to the cockpit were fab back then too, truly fascinating watching the various instruments on the panel and listening to how they worked and what they did - I suspect if cockpit visits were ever going to be allowed now, it would be like being sat in a computer game, sterile and little imput from the crew)