This is a YouTube series -- several of them, actually -- featuring marbles racing against each other in a variety of competitive events. The current season is "Marbula One" -- a Grand Prix where sixteen marbles go down MarioKart style tracks (first in qualifying heats, then in a free-for-all multi-lap race). Prior seasons have featured the Marble Olympics, with various teams ("The Green Ducks", "The Rojo Rollers", etc.) competing across events ranging from the 5 meter sprint to a giant maze to a rafting course.
It's brilliant. It's got high production values complete with time splits, medal podiums, stands filled with (marble) fans, inspired courses, and an announcer who makes it sound exactly like you were watching the Olympic games. Much like LegoMasters (which is or will be another PlagueWatch recommendation), it sings because brings to life our childhood imagination -- these were not the tracks and events you actually built, these are what you had in mind when you were building but never could reach because you were nine and time is limited.
It's a perfect filler for the sports void we're currently going through, and is just the right mix of competitive and silly to serve as an antidote to these anxious times. Pick a team (I'm partial to the "O'rangers" -- pronounced "Oh Rangers" and chanted "Ohhhhh Rangers!"), settle down on the couch, and prepared to have your heart leap surprisingly high in your chest as two marbles criss-cross for first place on the final home stretch.