In the magazine we try... somewhat... to be factual.
On the TV Show, everything else comes secondary to entertainment.
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Also, Prii last a very, very long time. One of the writers up at TTAC is a secondhand car dealer, and he loves the things. They're incredibly low maintenance. The batteries last an incredibly long time. And secondhands with 200,000 miles on them still change hands for very good money (and still get over 50 mpg).
There are fleet users who have put over 300,000 miles on their Prii needing nothing more than tire changes, (infrequent) oil changes, and (even more infrequent) brake pad changes.
Still a bigger environmental impact, overall, than... maybe a scooter or a Mitsubishi Mirage... but against any full sized car, you can come up pretty positive in a Prius.