Time Warp

In Amarillo, TX about 3 weeks ago, I was thrilled to find the public radio station for a few minutes of Car Talk. The caller was from not too far from home and had a long but interesting question.

This morning, I turned on Car Talk just as the same caller was asking the same question.

Reruns?

No. Pledge drive. I felt like I was in a warp of time and space. What I thought was live 3 weeks ago was being played today. Or was it the other way around. Is what I heard today really the live show and the other was a rerun (or prerun)?