This week's full show - Rational Radio focus on Eskom, Prosus, Comair, MTN and more

This week's episode of Alec Hogg's weekly Rational Radio show features interviews with SA's favourite market watcher David Shapiro; outspoken energy specialist Chris Yelland; Barbara Walsh of Metaco; Marius Hollenbach on the latest survey of SA mobile broadband speeds; and Bright Light Solar's CEO Kevin Shames.