During the Ojay's barbershop scene you can clearly see in one instance the TV is uncovered, then later in the scene the TV is covered up with a bag.
Bobby actually worked for Jay's Barbershop and not Ojay's Barbershop as portrayed in the film.
In the Ojay's barbershop and Bobby's Cut Above scenes, you can see the same gray closet in the back of the shop.
In the night club scene, during the car chase, images of the crew can clearly be seen moving around on the ground.
While Phone Tech Tim's talking about Limo Driver Phil's parents you can see the microphone stand in the back of the shop.