Where can I promote my cooking show?

It's called "The Northwoods Cooking Show". Miss Callie and I (Uncle Roy) make easy and simple recipes together in the kitchen. It's a 1/2 show on cable access here in Mpls.. Is there a place we can advertise to the public for free elsewhere? We are on You Tube and Facebook but to promote it would cost us a lot of money. We are not selling anything, just giving away a 1/2 hr from reality. It's full of fun and laughs, and serious recipes. Any ideas? Check it out first and get back to us. Thanks.