The Venture Bros. was canceled after Season 7.

The Venture Bros.: The Complete Series is coming to Digital & DVD on June 20 from Warner Bros. Discovery Home Entertainment. All episodes from Adult Swim’s The Venture Bros. is coming. The complete collection features 82 episodes from the seven-season run and all the previously released special features. The Venture Bros.: The Complete Series will be available to purchase Digitally ($79.99) and on DVD($134.99) from Warner Bros. Discovery Home Entertainment on June 20, 2023. Created by Chris McCulloch and Doc Hammer, the series premiered on August 7, 2004. It features the voice talents of James Urbaniak as Dr. Thaddeus “Rusty” Venture, Christopher McCulloch as Hank, Michael Sinterniklaas as Dean Venture, Patrick Warburton as Brock Samson, and Paul Boocock as Dr. Venture’s deceased father, Dr. Jonas.

Synopsis
“Jonny Quest” gets an irreverent but affectionate spoofing in this animated series chronicling the sometimes hair-raising adventures of Hank and Dean Venture, the not-especially-bright twin sons of pill-popping “super-scientist” Dr. Thaddeus “Rusty” Venture. Luckily (for the most part), their safety is overseen by a security guard who uses his license to kill every chance he gets.
Can’t believe Cartoon Network thought they had a better show to replace this gem. VB and Archer are by far the best animated series to come along since The Simpsons.
Also Bojack Horseman and Pantheon