In the 'cold open' for the show, just after Lois stops the violent games and changes the TV to a sappy kid-friendly program, Dewey gets up off the couch to get more chips. The camera cuts to Malcolm and Reese arguing for a moment, then widens to show Dewey, who is sitting again, then getting up to ask for more chips, as before.
Hal compares the air temperatures inside and outside of the trailer. Then the boys are asked to step outside. The suitcases outside the trailer change position between camera shots.
Malcolm uses the big remote to turn on the TV's surveillance camera, but in the the TV, Malcolm is using one of the smaller remotes but when the scene cuts back to Malcolm on the couch it shows him setting down the big remote.
In the cold open Malcolm & Reese hold remote controls while playing a game on the TV. Lois comes in and changes channels to "something wholesome". Suddenly, the game controllers have disappeared.
Malcolm splats toothpaste on Reese's tee shirt. When Lois comes in a minute later, the size, position and shape of the toothpaste stains on Reese changes.