TOS
Budget
$100,000 (per episode) (estimated)
TNG
Budget
$1,500,000 (per episode) (estimated)
$2,500,000 (per episode) (season 3-7) (estimated)
Deep Space Nine
Budget
$2,000,000 (per episode) (estimated)
$4,000,000 (per episode) (Season 4-7) (estimated)
Voyager
Budget
$2,200,000 (Per Episode) (estimated)
$3,500,000 (per episode) (Season 4-7) (estimated)
http://www.imdb.com/title/tt0106145/business
http://www.imdb.com/title/tt0112178/business
http://www.imdb.com/title/tt0060028/business
http://www.imdb.com/title/tt0092455/business
All links cite mojoboxoffice as their original source.
Remember the bleed over with when tng, ds9 and Voy were made simultaneously. So really they were using less money per episode to make the last five seaosns of Voyager than they were to make both a cheaper Voy and DS9 together.
Moving along.
Navros, of course the DVD's sold well. It's compelling and well made TV. However as a weekly digest, it's pretty hard for Americans to follow with out Nudity or car chases as an incentive. Besides how the money is split up, I don't think that the ad revenue TV money from reruns and the DVD sales money goes to mostly the same people.