I was 17 when I saw Star Wars... I was just blown away by it...
The younger folks never really got that experience, since SFX had come so far in a short time after that, that my kids came up with those kind of SFX as a "routine" bit of movie-making... Even CGI wasn't all that exiting to me, nothing like SW, anyway..
Before ILM, it was, with a few notable exceptions like Star Trek, 2001, et al, always the rocket ships with sparklers and "flaming hubcap" UFO stuff.. After SW, "Buck Rogers in the 25th Century" and "Battlestar Galactica" HAD to at least match the FX levels, which, because of the cost, I knew they'd be doomed series' anyway...
How much better would a TV series like "12 O'Clock High", "Baa Baa Blacksheep", or "Combat!" be with today's CGI SFX I wonder? Still, costs would probably doom them all, even if the audience was big enough for a WW2 series... During "Blacksheep", the seven Corsair and three Zero/SNJ pilots got $700.00 a day whether they flew or not... (That's why we saw so many of the same shots over and over... )
There was also a big stink raised about the show in general once the 70's anti-war crowd got wind of the fact that the WW2 gun-camera footage used in BBBS was showing REAL people getting killed, which led to some sponsors pulling out due to boycotting (which, in turn led to stupid premises like "Pappy's Lambs" and entire episodes without any combat scenes).... 'Course, the show didn't have much going for it after the first season anyway, story-wise...
"Tour of Duty" went the same way after the second season... It became a freakin' soap opera instead of doing what worked, which was telling stories about an Infantry Platoon in Vietnam...
Anyway... I wonder too if the shows I mentioned would ever translate to more modern times? "12 O'Clock High" wouldn't be much to watch if it was the 509th in B-2s hitting caves in Afghanistan, or if "Baa Baa Black Sheep was about VMA 214 and their Harriers hitting targets in ODS... "Combat!" probably would be a good candidate though...
I think models could make a comeback in TV series as a cost-cutting measure too, perhaps real models with CGI enhancements?