Hear me out. KVVU no longer has one sports-related channel... now they have TWO. One is the Silver State Sports and Entertainment Network, but now they've recently launched 5DRVtv (5 Drive TV).
Outside of Local News LIVE from 4-6 am, 11 am-12 pm, and 4-5 pm (7-9 am, 2-3 pm, and 7-8 pm ET; which seem to be the main newscast timeslots for that streaming network), the schedule is devoted to all things cars and motorsports with programs such as Moto America, Race Central TV, Music City Trucks, Detroit Muscle, PowerNation Builds, etc.
Some of these programs are also seen on SSSEN, but that's more aimed towards general sports, whereas 5DRVtv (KVVU-DT 5.4 by the way, which replaced Dabl) is focused on cars and motorsports. This may be the first such local digital subchannel I've heard of.
EDIT: Another thing...
Despite Gray not having a Telemundo presence in Las Vegas (because you have O&O KBLR Channel 39), KVVU went ahead and launched Spanish-language news and weather content anyway with Vegas Hoy.
https://www.vegashoy.tv/