The Monty and Victor TV Show (if it can be called that) is broadcast in real time as incidents happen, but the boys are sometime shown in either fast motion or slow motion, which can not possibly be done in real time. (Later on it appears that the same fast-motion activities are run in a loop.)
Madam Odius' Mind Control Ray worked perfectly on Mick, but that's no guarantee it'll work as well on humans (as Mick is an alien).
Early on it was stated that the Mind Control Ray would strike the entirety of Earth, but when the switch is thrown, the Warrior Dome flies low within Earth's atmosphere to strike only Summer Cove. If attacking Earth one city at a time, the complete takeover will take a very long time, with ample opportunity for free minds to shoot down the ship. Later on when Brody hears about the mind-controlling TV show, he somehow figures that half the planet must be affected.
Levi took the central position in the Ninja Steel Megazord and Ninja Ultrazord cockpits ahead of Brody (which is especially strange considering that none of his zords were part of either combination).
Brody and Levi (and later Calvin) join Hayley, Sarah and Preston at the front of the audition line. They could be cutting in line, which Monty and Victor, and everyone else standing after them, don't object to. Since only Hayley is auditioning, the sudden addition of Brody, Levi and Calvin is okay, but that doesn't mean self-centered (and frequent cheater) Victor wouldn't check to make sure these new arrivals aren't actually trying to cut right in front of him.