From MythTV Official Wiki
MythTV, starting with the 0.25 release, provides a new option for serving content from a machine that does not have tuners attached. The mythmediaserver program uses the modular protocol library to perform file serving duties.
mythmediaserver --help mythmediaserver version: fixes/0.25 [v0.25.3-117b611e-MacPorts] www.mythtv.org MythMediaServer is a daemon implementing the backend file server. It is intended to allow access to remote file storage on machines that do not have tuners, and as such cannot run a backend. Misc. Options: -d OR --daemon Fork application into background after startup. -O OR --override-setting Override a single setting defined by a key=value pair. --override-settings-file Define a file of key=value pairs to be loaded for setting overrides. -p OR --pidfile Write PID of application to filename. -h OR --help OR --usage Display this help printout, or give detailed information of selected option. --version Display version information. Logging Options: --loglevel Set the logging level. All log messages at lower levels will be discarded. In descending order: emerg, alert, crit, err, warning, notice, info, debug defaults to info --logpath Writes logging messages to a file in the directory logpath with filenames in the format: applicationName.date.pid.log. This is typically used in combination with --daemon, and if used in combination with --pidfile, this can be used with log rotators, using the HUP call to inform MythTV to reload the file --nodblog Disable database logging. -q OR --quiet Don't log to the console (-q). Don't log anywhere (-q -q) --syslog Set the syslog logging facility. Set to "none" to disable, defaults to none. -v OR --verbose Specify log filtering. Use '-v help' for level info.