KnoppMyth Release 2 "Chicago, Chicago"

In your BIOS, set the system to boot from CD.
Type:knoppix alsa screen=800x600(if you're are not attached/ing to a TV or aren't using a VGA -> TV, then you can omit screen=800x600)
After the system boots from the CD, press <CTRL><ALT><F2>.  At the prompt, type:knoppix-installer
Use option 3 to partition your hard drive.
Select the drive to wish to install to.
Create a /swap and / partition.
Write to partition table and Quit.
Select option 2 to start the installation.
Create a user account(DON'T make an account with the name mythtv, this account is already created with a passwd of mythtv).
Set your root passwd.
Select Yes and have a sandwich, but not a big one, the install shouldn't take too long! :)
Once the install is complete:
#reboot

Don't forget to change your BIOS back to boot from the hard drive.
The system should boot up and you'll see the MythTV main menu!
Move down to Setup<enter>.
General<enter>.
Next on the second screen.
Select a key combination to halt MythTV(I use <ESC>).
For the Halt Command:sudo halt
<ESC> until you get back to the Main Menu.  Use your key combination to halt MythTV.  Choose:
Yes, Exit now

Left Click on the Desktop and choose XTerm.
At the BASH prompt:
$su
#netcardconfig
#ln -sf /dev/scd0 /dev/cdrom(it exist, but it musted be link again for the CD-ROM to work)
#ln -sf /dev/scd0 /dev/dvd
#adduser mythtv cdrom(Note, you'll need to log out and back in for MythMusic to be able to read from the CD-ROM drive)
#/etc/init.d/alsa-autoconfig
#tzconfig
#date (ensure the date is correct)
#exit
$mythtv-setup
yes to both options
Go thru the 4 steps
Once you've completed the 4 steps.
Exit the setup program.
$alsamixer
Set the line in to capture(move to it and <spacebar> and ensure it is muted(volume all the way down).
$su
#/etc/cron.daily/mythtv-backend
#/etc/init.d/mythtv-backend restart
#exit
Left Click on the desktop and select MythTV.

Once Myth starts go to Setup and configure the various options in MythTV.  
The following filesystem layout exist if you choose to use it:
/var/mythtv
          /cache(for the buffer)
          /gallery(for your photos)
          /game(for games)
	 	/nes(for Nintendo emulation)the binary is in:/usr/games/fceu-svga
	     		/roms(for roms)
	    		/screens(for screenshots)
                        /pc(for "regular" computer games)
	  		/screens(for screenshots)
	 	/snes(for Super Nintendo emulation)the binary is in:/usr/bin/snes9x
	     		/roms(for roms)
	     		/screens(for screenshots)
                /xmame(for xmame)the binary is in /usr/games/xmame
	    		/cabs(for cabinet photos)
	     		/flyers(for flyer photos)
	     		/hiscores(for Hi-Scores!)
	     		/history(for gameplay history)
	     		/roms(for your roms)
	     		/screenshots(for screenshots)
          /music
          /recorded(where recorded programs are keep)

Tips and Hints:

If your card is detected but you get no picture or the system locks, you'll needed to let the kernel know what card and tuner you have.  I have a Hauggauge WinTV and a Pinncale PCTV.  The WinTV is detected without issue, but the PCTV is not.  To rectify this I created a file in /etc/modutils/ called bttv that looks with this:

alias char-major-81 videodev
alias char-major-81-0 bttv debug=2
options bttv card=10,39 pll=1 radio=1,0 tuner=2,8

I also have some stuff in there about btaudio, but I need to clean it up...
You can find what options you need to pass by taking a look at:
/usr/src/linux-2.4.21-xfs/Documentation/video4linux/bttv/CARDLIST
If you need to create such a file, don't forget to update-modules when you are done.

If you have a NVidia card, you'll need the NVidia's drivers:
You should do this from a virtual terminal (you know, ALT-F2).
$wget ftp://download.nvidia.com/XFree86/Linux-x86/1.0-4363/NVIDIA-Linux-x86-1.0-4363.run
$su
#export IGNORE_CC_MISMATCH=1
#/etc/init.d/gdm stop
#sh NVIDIA-Linux-x86-1.0-4363.run
#echo nvidia >> /etc/modules
#echo "alias /dev/nvidia*    nvidia" >> /etc/modutils/nvidia
#modprobe nvidia
#update-modules
Edit you XF86Config-4:
Comment	Load  "GLcore"
	Load  "dri"
Ensure 	Load  "glx" and
	Load  "v4l"(You'll need to create this one)
exist(are not commented).
If you have the system hooked up to a TV **ENSURE**
HorizSync "30 - 50"  **if you live outside the US, these values maybe different**
VertRefresh "60"     **check NVidia docs**
Change Driver to "nvidia"
Save you changes and exit.
#/etc/init.d/gdm start

If you have you box hooked up to a TV and when if boots, you see a message saying 'Press <RETURN> to see modes......'
You'll need to edit you lilo.conf
At the top, if should say vga=xxx, change it to vga=normal
Don't forget to lilo -v when you are done ;)

Take a look at /usr/share/mythtv/keys.txt for keyboard bindings.

Enjoy!
Cecil