There's also OGGBot in IRC that can do lookups. From it's help:
    hpr ep[isode] 
    hpr ti[tle] [-i] 
    hpr ho[st]  [-i] 
    hpr la[test]
    hpr sl[ot]

So to find shows about raspberry topics:
    OGGBot: hpr ti -i raspberry

Which yields a channel message:
    Found 8 matches, PMing you the first 6 (try refining your search)

And a PM containing:
    Episode 1721: Cross-compilers Part 2 by Mike Ray ( mike.nospam@nospam.raspberryvi.org ) ( https://hackerpublicradio.org/eps.php?id=1721 )
    Episode 1712: What's in my Crate by Mike Ray ( mike.nospam@nospam.raspberryvi.org ) ( https://hackerpublicradio.org/eps.php?id=1712 )
    Episode 1706: Cross-compilers part 1 by Mike Ray ( mike.nospam@nospam.raspberryvi.org ) ( https://hackerpublicradio.org/eps.php?id=1706 )
    Episode 1649: Raspberry Pi Accessibility Breakthrough by Mike Ray ( mike.nospam@nospam.raspberryvi.org ) ( https://hackerpublicradio.org/eps.php?id=1649 )
    Episode 1629: Banana Pi - First Impressions by Mike Ray ( mike.nospam@nospam.raspberryvi.org ) ( https://hackerpublicradio.org/eps.php?id=1629 )
    Episode 1569: Many-to-many data relationship howto by Mike Ray ( mike.nospam@nospam.raspberryvi.org ) ( https://hackerpublicradio.org/eps.php?id=1569 )

Two things to note:
    1. I need to make it not include the host name or email when searching
       titles; and
    2. I need to do an episode on OGGBot :/
