It was a day to celebrate with the community, and the community did just that.

More than 400 people came to an open house at the CBC building on Miles Street Friday for CBC Thunder Bay's 40th anniversary, with many more offering their best wishes through social media, email and over the phone.

"I hope you have many more years to come," said Barbara Kemeny, who said she's been listening to CBC since she immigrated to Canada in 1996.

On the Facebook page for CBC's Superior Morning program, listener Jason Napper wrote, "All of your familiar voices throughout the day are comforting to someone who once spent a great deal of time driving, as well as waking to your voices or cooking supper ... Cheers and congratulations to everybody at CBC Thunder Bay on their 40th anniversary!"

Both Superior Morning and Voyage North broadcast live from the CBC newsroom and featured performances from local musicians such as the Crosstown Blues (featuring CBC's own Gord Ellis) and singer-songwriter Nick Sherman.

Several politicians stopped by to offer their congratulations, including MPP Bill Mauro (Thunder Bay-Atikokan) and MPs Greg Rickford (Kenora) and Bruce Hyer (Thunder Bay-Superior North).

Mayor Keith Hobbs read a proclamation declaring September 27 "CBC Day in Thunder Bay," and Deputy Grand Chief Alvin Fiddler of Nishnawbe Aski Nation presented program manager Susan Rogers with a commemorative plaque.