I know American Idol is probably on its way out. A good run and all of that. There is most likely not enough room in the space for it and The Voice. That tells me the target audience isn't big enough for both shows.
However, I picked up on something from Noisey, Music by Vice that I liked and feel is profound for musicians in bands.
In the article by Maura Johnston, a Kiss tribute band is auditioning for the Gene Simmons role. A distraction was created by the guy jumping around while playing. Yes, a distraction. He was told just to play. The connection with the band was lost.
All bands need to focus on this. Play. Don't create any distractions that keeps your band from connecting with the audience. Connect with your band and you'll connect with your audience.