I haven't seen any commercials since I started paying $11.98/month, a plan that ...

criddell · on Jan 3, 2016

This page:

  http://www.hulu.com/help/articles/52427902

says some shows still have commercials:

Grey’s Anatomy, Once Upon a Time, Marvel’s Agents of S.H.I.E.L.D., Scandal, Grimm, New Girl and How To Get Away With Murder

It also says shows available for next-day viewing will still have commercials.