Boston Radio: Michael Holley EXITS WEEI-FM

Michael Holley (center)

It has been a while since there has been a major change in hosts on either of Boston’s highly rated sports radio stations. But a big one came down Wednesday, according to boston.com.

Michael Holley, who co-hosts PM Drive on WEEI 93.7 FM along with Dale Arnold and Rich Keefe, announced he is leaving the program to join NBC Sports Boston full time. His final show was Wednesday.

Holley, already a co-host of NBC Sports Boston’s weekday evening program “Boston Sports Tonight,’’ will take on an expanded role, though the specifics are not yet certain.

“Leaving this job was not an easy thing for me,’’ said Holley in announcing the decision during the 5 p.m. hour of Wednesday’s show.