It's been a slow climb since Netflix first announced it was adding closed captioning to the PC and Mac in early 2010, but today's blog post indicates its reached 30% of the available titles. So far platforms on the second revision of its streaming frontend like the PS3, Boxee Box, Google TV and Nintendo Wii support optional captions while the Xbox 360 and Roku players should "later this year." Of course, while its per-episode count is significantly higher, it's still only a few hundred of Netflix's availab
