Roku recently released their earning and their results are quite impressive as they shift into an advertising platform built on TVs and through streaming sticks. Some of the highlights for Q4:

Platform revenue grew 77% year over year for the quarter to $151mm, a total of $416mm for the full year.
Streaming hours grew close to 70% year over year for the quarter to 7.3 billion hours.
The average revenue per user is now just under $18 with over 27 million active users (40% growth rate year over year for the quarter).

The idea of more targeted advertising to consumers that are paying better attention as cords continue to be cut continues to shine. Roku seems poised to benefit for the foreseeable future.