Incantation to stop lockscreen

[Stephen Allen]

On Thu, Jan 22, 2015 at 08:39:01PM -0500, Niles Rogoff wrote:
> I would need to know more about the specific implementation of the
> "fullscreen" feature in Me-TV, but a probably easier solution would just to
> be to install this extension
> <https://extensions.gnome.org/extension/517/caffeine/> and toggle it on
> when watching TV

Well that's pretty much the same as disabling it via the settings panel and disabling via the power manager. I'd really want to disable it on starting the application. Isn't there a command to add when launching? Chromium had/has this problem in full screen, and when I complained to the packager/maintainer, he suggested I use the provided command to disable screensaver when invoking chromium.
Unfortunately, I didn't keep that correspondence.