It is reported on P.11, issue 207 of Computer Active Magazine that vicars are using podcasting to get across their messages and sermons to parishioners; it is described as being particularly helpful to the elderly and the housebound. These same benefits were noted for the same groups of people when radio and TV took on religious broadcasting umpteen years ago, and I should think that many housebound and elderly nationwide(maybe even the majority), will still be tuning in to those wavebands and using familiar technology to do so. However, in the article the Rev S.Ledbetter states that,

"...a church in Merseyside has nearly 600 people tuning in for a weekly update ... all you need to do is fix them up with a portable music player and they're good to go."

Interestingly, Godcasting.org has reached out even further, podcasting the bible translated into Klingon.