Speaker Layout Help

2

So I'm finally getting around to connecting my external speakers to my TV, and I'm a little unsure of what the best placement is. Mostly, the room is a little odd shaped (what rooms aren't?) so it's not as clear cut as any online diagrams.

We mostly sit on the couch (the long rectangle at the bottom). Because of windows and doors, there's not really another place for the TV (and it fits that angled wall pretty well), but I can't quite figure out the best placement for the front-left and front-right speakers.

What letters would you put front-left & front-right at?

I haven't done it yet, but I'm planning on rear-left and rear-right to go in D & C. (Also, feel free to mock up other letters/layouts if you want to.)