In recent versions, the option to send doesn't even appear unless you've set those. I guess you're running an old version. In recent versions of pyTivo, ffmpeg will be found automatically if it's in the PATH, or in the "bin" directory, which is where I recommend placing it. 206 is normal. Not enough to go on here. Are there any other messages on the console? Anyway, I'd guess that the TiVo is dropping the connection. You could try rebooting it.