Reading or watching TV while you workout is a joke!
Seriously, if you can read or watch TV while doing any exercise, you're not concentrating enough on what you're doing, plus you're probably not working out hard enough to see any real results.
I challenge you to give the "traditional cardio" a rest for a month or two, and start training the way I explain in my internationally-selling Truth about Six pack Abs Program, and see how you start getting leaner, more defined, and your six pack starting to show through what used to be stubborn stomach fat deposits.
If you're interested in more reading about the topic of cardio training and better alternatives, here's an interesting cardio article I wrote previously. Click Here!