[mythtv-users] Setup without/without multirec and capturecard ids?

[Gary Buhrmaster]

On Mon, Mar 6, 2017 at 2:43 AM, Yeechang Lee <ylee at columbia.edu> wrote:

> No. When using card 2 with Live TV, the system won't let you change
> from the same channel that card 1 is already using. "Channel" includes
> ATSC subchannels; if card 1 is recording from 11.1, card 2 will be
> able to switch to 11.1, 11.2, and 11.3, but not 9.1 or 4.2.

Well, technically, if those are ATSC virtual channels
(which are typically how one looks at them), those
*could* all be on the same frequency, and allowed
[the requirement it to stay on the same frequency],
but in the US, with some exceptions, different ATSC
major numbers (11.x, and 9.x) do not typically share
transmitters.

Note that such transmitter (frequency) sharing, at
least in the US, will often be required for stations to
move to ATSC 3.0, as there are no available
frequencies to transition on (unlike the "digital
transition" where the FCC loaned/exchanged the
stations some spectrum; that spare spectrum is
in the process of being sold off for mobile).  Of
course, there are no current schedules as to when
any of those transitions may happen.