[mythtv-users] Multiple Lineups / Live TV Channel Change

[Scott and Nicole Harris]

> So, if you're trying to use the hack that prioritizes Live TV over
> recordings, you would create your capture cards in the opposite order
> you want them used for Live TV (i.e. with the
> least-preferred-for-Live-TV card created first and the
> most-preferred-for-Live-TV card created last). Then, you would go
> through and connect inputs in the order you want those inputs used for
> recordings and change the default of 2 virtual tuners to 4 for each
> (digital/multirec-capable) input as you connect them. Then, when you've
> connected all the inputs, you would go back in and change the 4 virtual
> tuners to 5 to create a "Live TV" tuner.

OK, I think I've got the grasp of it all, except for one thing.  Why do I want to change the default of 2 virtual tuners to 4 as I connect them?  What's wrong with leaving them at 2?