Yes, you can learn about these two characters and many more by listening to the episodic SF podcast called The Radio Adventures of Dr. Floyd. It is a series of 4 to 6 minute episodes done in that “old time radio” style (as per their webpage.) I have listened to the first two seasons and these guys have a formula that works. Its family friendly and educational too – plus its darned funny. If you have not really listened to a podcast, this would be a great one to start with.