One thing we can credit TIVO (and other time-shifting, commercial skipping devices) for is much greater effort on the part of commercial creators to actually make the commercials entertaining and worthwhile.
Of course there have always been great commercials (Thanks VW!) and folks with brilliant vision in that vein, but the hastening of mediocre content by technology is one of the greatest entertainment coups of the 21st century.
The Discovery Channel’s Boom-de-ya ad is expansive, uplifting and the jingle is habit forming. Truly one of the best ads I know!