Witty & Punny:
* Math-er Minds
* Number Crunchers
* The Equation Show
* The Calculus Cafe
* The Pi-Lot Episode
* The Geometry Gig
Informative & Serious:
* The Math Forum
* The Number Theory Show
* The Algebra Anthology
* The Mathematical Mysteries
Audience-Specific:
* Math for the Masses
* The Mathlete's Corner
* The Math-a-holics Anonymous
* The Quant Cafe
Unique & Catchy:
* The Infinite Loop
* The Zero Point
* The Fractal Zone
* The Fibonacci Factor
Consider your target audience and the overall tone of your show when choosing a name.
You can also use a name generator or brainstorm with friends and colleagues to come up with more ideas. Good luck!