[mythtv] more on dvb record failure

[Mark Spieth]

>
> Are the services that take a while encryped?

all FTA for me. no CI slot.

>
> Maybe we need add the access controller's startup time to the timeout?
>
the PMT/PAT stuff is generally not encrypted anyway. only CA streams would
be specified as part of the services which allow decryption of the video and
audio streams. I suspect thats irrelevant for PMT acquisition.

mark