Question about Marshall Woburn

Yes, there are 3 possibilities according to the description:
3.5mm jack (Line In)
1 x
Stereo Cinch (RCA)
1 x
Optical TOSLINK
1 x

I would use the optical input. The quality should be better than with cinch and jack.
Oh yes: with the speaker you can only listen to Netflix. Watching will be difficult ;-)