I thought I would give an update
I have an old 25" TV with an older Pioneer receiver/home theater with 5 speakers for surround sound, and finally an outdoor antenna for TV channels. I don't have HD TV, digital hookup for the receiver, cable, or satellite. With such a spartan home entertainment center by today's standards I was not looking for much in an audio/video jukebox.
Many of you suggested that I did not need to install mythtv because my needs were so small. Just wanted to play mp3, oggs, Google videos, and occasionally use to play DVD when DVD recorder is in use.
Well, I installed mythtv anyway for the following reasons:
1. Keyboard only control. I did not want to mess with a mouse in my living room. A wireless keyboard (someday if I upgrade) or a tethered keyboard on the floor was fine for now. Although I could have set up a window manager with hotkeys and learned all of the keyboard commands for a few programs, mythtv comes set up with a keyboard controlled menu that works well.
2. Full screen video. Mythtv has an internal player that defaults to full screen. Once again could have done it with an other player and one key command, but would have to set that up.
3. Full screen audio player. I never saw an audio player that I thought would look good on such an old TV screen, but mythtv has a plugin that looks great on an old TV. I can't imagine using XMMS on a TV, I can barely make out its icons and text on a computer screen.
4. I wanted directions that I could follow step by step. Mythtv has this for several distros. I used the Ubuntu wiki guide here:
https://help.ubuntu.com/community/MythTV
Disadvantages I experienced:
1. Long set up. It took me about 5 hours to do the software install, and the physical hook ups to the entertainment center (last part was only 5-10 minutes) Part of the issue was the complexity of the install for me.
2. Had a problem with the Ubuntu guide. I couldn't run the install setup for mythtv because of a problem with the mythtv user the install had created. The mythtv user was not given permissions for one of the mythtv backend databases, so it would not let me complete the install until I had fixed this issue. Not knowing anything about mysql, or administering databases, I was lost when the fix placed on the Ubuntu wiki did not work. After installing phpmyadmin and just clicking around and changing the permission settings it then worked. This was just dump luck, since I had no idea what I was doing by changing the permissions. This issue probably added at least an hour to two hours of frustration.
3. Lots of extra needed to be installed just to get an audio/video jukebox. Although I wouldn't be using the mysql databases, and many of the other features, you needed a working mythtv frontend and backend in order to install the mythtv pluggins which let me do the audio/video jukebox work.
4. Shutdown is not great. When you exit out of Mythtv you are dumped into openbox. Then you need to exit openbox to get to GDM. Then you need to shutdown from GDM. I would think that this could be streamlined a bit better. Like exiting mythtv shuts down the computer since that is all this computer is used for. Also because of the way it works I have a few other issues. I have not mouse, so I can't seem to bring up the openbox menu (maybe there is a key combination, but I don't know it) So I do CTRL+ALT+BKSP which brings me to GDM. However GDM has the lower left part of the screen cut off on the TV (this is odd since when in mythtv I don't seem to have any part of the video cut off in that area or any other) So that option menu is in that corner which you can't see. So I hit ALT+t to get the menu then arrow keys to highlight the shutdown option. If anyone knows how to stream line that it would be great.
I did use my 1ghz, 256 megs or ram, 60gig hard drive computer for this with a $33 scan converter from Computer Geeks. Overall, I'm impressed with the picture quality and sound. I'm getting 5 speaker surround sound from the AC97 onboard sound. I'm getting a nice 25" picture. In fact, since I can sit in my la-z-boy recliner the experience is far better than watching a video on a 17" monitor with cheap little computer speakers. The computer was a cast off from a family member who did not want to fix it. I had to install a new power supply and the scan converter I got as a gift this last Christmas. So total I have $42 dollars into this project for a power supply and a connecting audio cable from 1/8" stereo male to two RCA males. I plan to use it only 4-6 times a week, so I would say that all in all, I'm happy with what I got.
It probably seems useless, but I think it would be nice for a project to take the benefits of the mythtv interface, and combine it with the ease of a simplified install to create a simple audio/video jukebox. There is probably little interest in such a project since we have mythtv that does that and so much more, but sometimes for me less is more. I still love plain old bashpodder, because it does what I need and adds nothing more to the mix. Simple, functional, and super easy to install.