There are several cycling journalism outlets that do very detailed breakdowns of bikes and tech on the Tour de France. This is usually a bigger deal at the beginning of the tour, because teams sometimes show up with bike setups that haven't been previously seen.
Cyclingtips has a bunch of good breakdowns and tech segments on bikes. These videos are usually pretty interesting if you're into bike tech. I wouldn't expect the average TV viewer to care about most of this stuff.
Here's one where they get into details of a few different bikes, they even weigh them:
https://cyclingtips.com/2021/06/bike...sram-and-more/
Also this one:
https://cyclingtips.com/2021/06/pro-...ks-tarmac-sl7/