[mythtv-users] Two tuners showed up

Nick Rout nick.rout at gmail.com
Sat Aug 6 06:48:23 UTC 2011

On Sat, Aug 6, 2011 at 4:50 PM, Stephen Atkins <satkins at inetdesign.org> wrote:
> On 8/5/2011 7:13 PM, joe at thefrys.com wrote:
>> indeed, multirec means recording multiple shows on the same 'broadcast channel' (laymans terms)
>> For example, my cable company manages to squeeze 9 to 11 SDTV channels on one catv channel (a multiplex).   When I chose to watch any of those 11 channels, the data for all 11 arrives at my card and it only passes the one I am interested in to the rest of the system.  With Multirec on, the tuner simply passes more of the data.
>> I have recorded as many as 5 shows concurrently from that one multiplex (never wanted more than that).
>> You see the same thing in broadcast.  Most channels share a multiplex with others, the bandwidth of a standard NTSC channel is wide enough for 2 HD, and 4 or more SD channels multiplexed.
> Okay now that makes sense.  Now the only problem is the stations I get
> here don't multicast.  At least not yet.  We are just switching to
> digital OTA as of Aug 31.  They have had test signals going for a few
> months now and that's what I'm recording.  Out cable companies feel the
> need to force people into renting or buying boxes to get the digital
> cable signals and won't let us use cable cards or anything like that.
> So I'm stuck with OTA and until they figure out how to multicast I'm
> hooped.  Thanks for the info everyone.  I'll keep it configured as it is
> but I'm not holding my breath for our TV networks.

That is very odd as they are wasting a huge amount of bandwidth.

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