It's great to hear some discussion about this topic. I'm from Australia and nobody knows what badminton is and the ones that do think its a backyard outdoor picnic sport. I definitely agree that true fans are going to be ones that play and this does mean getting it into the grassroots as Fidget said. What I would like to see is firstly a greater appreciation for the speed and athleticism that goes into this sport. Currently the broadcast camera perspective doesn't give much context to a regular viewer and really doesn't do the pace of this sport justice.
There's definitely a spike in the popularity/awareness of badminton every 4 years in the olympic cycle and I think this would be a great time for BWF to really push some more awareness of this sport. Any other ideas/angles you guys have?
I definitely agree with your point on the current standard broadcasting camera being less than optimal. It gives a nice overview of the court, and someone who has seen pro badminton live can appreciate the show as it is, but the distance and angle really deceive the viewer and make it seem less intense and fast than it actually is. Sound production is another aspect, although I'm not entirely sure if that can be improved much - in a live tournament, the sounds of the players hitting the shuttle are more intense, crisper, louder, than they are on broadcast. Makes it more impressive.
The main improvement for a better broadcast that I'd like to see: more different camera angles. More flat angles, to really show the speed of the game accurately. Maybe even some fisheye lense action, there were some great videos of LCW at the Japan Open a couple years back that used one and the effect was incredible. I wouldn't use it as the main perspective for a broadcast because of the lower image quality, but I'd definitely throw one in there, for example when you repeat a particularly spectacular rally. The main perspective could remain the current standard view, but it would need a flatter view at least 30-40% of the time.
Second improvement - hire more capable commentators. Let them explain why something was incredible. Let them bring passion into the game. I like guys like Steen and Morten, they're knowledgeable and good for color commentary, but I'd definitely pair them with a hype caster - they're too calm to excite someone who doesn't have an analytical/intellectual interest in the game. And never ever again hire that weird Canadian woman who sounds like a soundboard with 5 different comments - she doesn't seem to know much about badminton, her vocabulary appears limited and repetitive, and her voice is grating at best.
An example of what I mean by 'hype' casting (especially 4:45, 5:50):
Those guys probably have higher day rates than most badminton commentators, but at the end of the day, that's the price you have to pay to promote your sport. Same as production, you cant skimp on cameras and expect to be popular, you'll need more than one birds-eye view these days.