1.2) If you are getting errors/warnings when you try to exit mythtv-setup along the lines of "Card 0 (type) is set to start on channel 2, which does not exist.", you may need to manually delete the offending rows in the cardinput table. These are generally rows with the cardid = 0. If the following commands show a cardid (especially 0) in the cardinput table which is not listed in the capturecard table you should remove all references to it:
Code:
root@black2:~# mysql mythconverg -e "select cardid, videodevice, defaultinput from capturecard"
+--------+-------------+--------------+
| cardid | videodevice | defaultinput |
+--------+-------------+--------------+
| 1 | /dev/video0 | Tuner 1 |
| 2 | /dev/video1 | Tuner 1 |
+--------+-------------+--------------+
root@black2:~# mysql mythconverg -e "select cardid, sourceid, inputname from cardinput"
+--------+----------+-----------+
| cardid | sourceid | inputname |
+--------+----------+-----------+
| 1 | 1 | Tuner 1 |
| 2 | 1 | Tuner 1 |
+--------+----------+-----------+

As far as I can tell, valid cardid and sourceid values now start from 1 rather than 0. To remove the offending records:
Code:
mysql mythconverg -e "delete from cardinput where cardid=0"