New writers?

[X-Factorz]

Are there different writers on these episodes now from who was writing the earlier episodes? I ask because I'm just not enjoying the show as much as I was when it first started. My girlfriend and I both used to laugh during almost every episode and really liked how clever the dialog was but now I'm just kind of bored throughout. The "filler" episodes to sell toys seemed to become fairly regular and now I feel like the whole story line is becoming "filler." I hope this is not the case and that the show gets back to what made it great initially!