ugh - i hate launchpad. it just lost my entire post.

I went back through my notes. They leave a little to be desired...

At the time I installed the "mythtv" metapackage, I did not have support for my DVB-T card working.
It is a Dvico model that is not yet supported by the mainline v4l tree. (I got it working with the branch
made available by Chris Pascoe back in December 2007).
So, I would probably have answered many debconf questions by taking the default.
I don't think I would have given unusable inputs.

I would not have had mysql-5.0-server installed at the time, I would have let the installation of mythtv
pull it in as a dependency.

My notes tell me:
 * I installed "mythtv" and debconf told me I need to run "mythtv-setup" as a member of the mythtv group.
 * I added my unpriviledged account to that group
 * I ran sudo /etc/init.d/mythtv-backend start
    I answered "no" to the question about "remote access"
 * I installed mythexport
 * I installed mythwe
    I did not set a mythweb password.
 * Something prompted me for a "mythtv p/w", which was stored in /etc/mythtv/mysql.txt.
    This appears to be the user for the mythtv tables in the database.
    I do not recall getting prompted for a mysql 'administrator/root' user at this time;
    my notes would have recorded the password.
 * I ran dpkg-reconfigure lirc

I also went and poked at my debconf database; below I show the output of
  debconf-get-selections | grep -A 0 -B 1 mythtv;
  debconf-get-selections | grep -A 0 -B 1 mysql
Most of these would be the original answers; the only dpkg-reconfigure changes I have made
should be in the posts I have already made to this bug.
In particular - mythtv-common:mythtv/mysql_mythtv_password was the value I have in my notes on paper,
but mythtv-database:mythtv/mysql_admin_password is the value I set when I ran dpkg-reconfigure.
I don't recall having to set it before and would not have used the same value.

Hope this sheds some light.
Vince

------------------ debconf data ---------------
$ debconf-get-selections | grep -A 0 -B 1 mythtv;
# What password should MythTV use to access its database:
mythtv-common   mythtv/mysql_mythtv_password    password        <elided>
--
# What is the password for the MySQL administrator account 'root':
mythtv-database mythtv/mysql_admin_password     password        <elided>
--
# Choices: NTSC, PAL, SECAM, PAL-NC, PAL-M, PAL-N, NTSC-JP
mythtv-common   mythtv/tv_format        select  NTSC
--
# Update the system MOTD?
mythtv-status   mythtv-status/enable    boolean true
--
# A backup of your database will be made
mythtv-database mythtv/backup_db        note    
--
# What is the name of the MySQL administrator account:
mythtv-database mythtv/mysql_admin_user string  root
--
# Is it OK to create the video4linux device nodes?
mythtv-backend  mythtv/create_v4l_devs  boolean true
--
# Will you be using other computers running MythTV?
mythtv-database mythtv/public_bind      boolean false
--
# Warning! These packages are experimental! Install?
mythtv-common   mythtv/svn_warning      boolean 
--
# The Ubuntu MythTV packages generate a random MySQL password.
mythtv-common   mythtv/display_password note    
# On what host does the MySQL server reside:
mythtv-common   mythtv/mysql_host       string  localhost
--
tzdata  tzdata/Zones/Europe     select  
# mythtv-setup must be run in order to complete MythTV installation
mythtv-backend  mythtv/run_setup        note    
mythtv-common   mythtv/run_setup        note    
--
# Install canceled!
mythtv-common   mythtv/abort_svn_install        note    
--
# Choices: tv_grab_de, tv_grab_na, tv_grab_sn, tv_grab_uk, tv_grab_uk_rt
mythtv-common   mythtv/grabber  select  tv_grab_na
--
# MythTV backend to check:
mythtv-status   mythtv-status/host      string  localhost
--
# What username should MythTV use to access its database:
mythtv-common   mythtv/mysql_mythtv_user        string  mythtv
--
# Send email status to:
mythtv-status   mythtv-status/email     string  none
--
# WARNING: old MythTV binaries found
mythtv-common   mythtv/old_bins note    
--
# Choices: us-bcast, us-cable, us-cable-hrc, japan-bcast, japan-cable, europe-west, europe-east, italy, newzealand, australia, ireland, france, china-bcast, southafrica, argentina, canada-cable, australia-optus
mythtv-common   mythtv/freqtable        select  us-cable
# What database should be used to hold MythTV data:
mythtv-common   mythtv/mysql_mythtv_dbname      string  mythconverg


$ debconf-get-selections | grep -A 0 -B 1 mysql
# Repeat password for the MySQL "root" user:
mysql-server-5.0        mysql-server/root_password_again        password        <elided>
# What password should MythTV use to access its database:
mythtv-common   mythtv/mysql_mythtv_password    password        <elided>
--
# New password for the MySQL "root" user:
mysql-server-5.0        mysql-server/root_password      password        
# What is the password for the MySQL administrator account 'root':
mythtv-database mythtv/mysql_admin_password     password        <elided>
--
# What is the name of the MySQL administrator account:
mythtv-database mythtv/mysql_admin_user string  root
--
# Really proceed with downgrade?
mysql-server-5.0        mysql-server-5.0/really_downgrade       boolean false
# Support MySQL connections from hosts running Debian "sarge" or older?
mysql-server-5.0        mysql-server-5.0/need_sarge_compat      boolean false
--
# Start the MySQL server on boot?
mysql-server-5.0        mysql-server-5.0/start_on_boot  boolean true
--
# Unable to set password for the MySQL "root" user
mysql-server-5.0        mysql-server/error_setting_password     error   
--
# Important note for NIS/YP users
mysql-server-5.0        mysql-server-5.0/nis_warning    note    
--
# Remove all MySQL databases?
mysql-server-5.0        mysql-server-5.0/postrm_remove_databases        boolean false
--
# On what host does the MySQL server reside:
mythtv-common   mythtv/mysql_host       string  localhost
--
# for internal use
mysql-server-5.0        mysql-server-5.0/need_sarge_compat_done boolean true
--
# What username should MythTV use to access its database:
mythtv-common   mythtv/mysql_mythtv_user        string  mythtv
--
# Password input error
mysql-server-5.0        mysql-server/password_mismatch  error   
--
# What database should be used to hold MythTV data:
mythtv-common   mythtv/mysql_mythtv_dbname      string  mythconverg