I have a policy of reporting on my blog the result of any research which took me some serious yahooing to discover. Here's one such entry.
On a whim, I tried the Myth Frontend for Mac OS X, and of course there was trouble from the start connecting to the backend running on my Linux Fedora Core 4 desktop machine.
First, you have to have mysql setup to allow remote usage. If you followed the Wilson Myth(TV)ology instructions, it will be almost there, but you have to give access to the other machines on your local network (which in my case has the assigned IP address pattern of 192.168.0.x, where x is between 1 and 15; your's might be different. So on the Linux box, you have to do the following:
$mysql -u root mythconverg -p
mysql>grant all on mythconverg.* to mythtv@"192.168.0.%" identified by "yourpassword";
Then you have to make sure the firewall allows the three ports you need for this job. So again on Linux (KDE) open up the Security Level control panel from the System Settings menu, and add the following to the "Other ports" field:
mysql:tcp, 6543:tcp, 6544:tcp
Then I was able to run the mythfrontend for Mac OS X and discover my 1.33GHz Powerbook G4 is not up to the task of displaying the stream, it's worse than the EyeTV performance, which is actually viewable on the same hardware.
Oh, how I am looking forward to Intel based Mac Minis. I've got a little space here next to the monitor just for one.