kdas
Yoohoo! That'd be me you're talking about, I assume.
I did use the GMAT Pill study resources while preparing for my GMAT, and I did indeed study while watching television. Note, however, that I wasn't studying
only while watching television - I did also put time into studying the material by itself, with no other distractions. I also did actually manage to finish my Verbal segment with plenty of time left, and scored a 46. The thing to note here would be that my results may not be typical; I grew up speaking English as a first language, and went through a pretty solid education system. If you're a native speaker of a language other than English, you may have more difficulty with the Verbal section. You can still easily do well enough to net a great total score, though; one of the GMAT Pill's former (non-native-speaker) students nudged his score up from 690 to 760 purely by working on his Verbal segment.
Since then, I've joined the GMAT Pill staff, and will be trying my hand at helping out on this forum.
Now, I can't speak as to the effectiveness of Knewton, as I have no first-hand experience with their resources. The GMAT Pill's resources, however, worked out great for me. What's
your studying style? Are you already familiar with the basic concepts that the GMAT tests, or do you need to pick everything up again almost from scratch? As I noted in my initial review of the GMAT Pill, different programs seemed to me to cater to different learning styles.
MGMAT gives you what appears to be a gigantic question bank, which is fantastic for people who just want to practise, practise, and practise some more. Kaplan's another really established program with great reviews from a whole lot of people, but they were a little too expensive for my taste. The GMAT Pill, on the other hand, was (relatively) cheap and seemed like it would work for me.
If you've got any other questions about the GMAT Pill, feel free to throw 'em at me.