Searchable / Linkable
Audio in search engines
Search engines can find transcribed programs and link the user right to time in the program that the search result refers to.
Command-F for podcast episodes
Player apps could allow searching within the currently loaded episode. Let's say you listened to an episode about baboons and you wanted to take another look at the part where they discussed their genetic similarity to humans. You could search "genome" and get right to the spot you want to hear again or just quickly give the transcript a look to see if they said we were 95% baboon or 99% or what.