Excerpt: Viewers have tripled their use of watching TV shows via the Internet since 2006 -- and some of this has hurt traditional TV viewing.
Media researcher Knowledge Networks says this trend affects a broad range of viewers: ages 13-54. Viewing of complete TV shows from streaming or downloaded video has climbed to 22% from 8%.
This also has climbed faster for younger 18-34 viewers, rising to 30% from 12% to 30% of 18-to-34 online users.
When it comes to making the sometimes more labor-intensive connection of hooking up TVs to PCs, 7% of 13-to-54 viewers have streamed or downloaded TV shows, and 11% for 18-to-34.