Need magazines

Our latest assignment for Ms. Judith Crist is an assessment of a weekly or monthly periodical with a circulation of more than 300,000. I am looking for any subscriber to a major national magazine who happens to have back copies. Something in the entertainment milieu is preferable for me (think Entertainment Weekly, not People or US Weekly). I had originally found a source and, upon a closer look, realized I mistook the readership numbers for the circulation figures. Drat! Please help! Thanks!