PVR List entry no longer works

[Budge]

I have a long standing entry in my pvr list for The Now Show as follows

pvrsearch = The_Now_Show
         search0 = The Now Show
         type = radio

I have just noticed that I have missed the first three shows in the 
current series and just fetched them using pid.

My question, why does the pvr item no longer work.  What has changed?

Budge