Yeah, it looks like those opening day marathons were just a mess on the schedule and they were still ironing out those schedule details those first few days. While the marathon block didn't air, one Starcade *did* air in the slot following the marathon, which was listed as a Viva La Dirt League. It was the first aired episode. Because of some weirdness with my guide and when I set up my series recordings, it didn't record the last few episodes which seem to be locked into a slot of 6am EST. I've since reset my series recording setting and hopefully, it'll record correctly for here on out. Going over the info present in those info blurbs (which include all the games available to pick, the three games picked in the first two rounds, and the contestant names), they've jumped to Geoff shows. Doesn't look like it'll air everyday, and somedays will have one episode while others will have two (and this morning will have three, apparently) but, when it does, it'll be at 6am.
It seems like G4's got their schedule together now, but we'll see if there are anymore quirks as they iron things out. So, great to see this show on TV again. It's such a soothing comfort watch.