Lessons (Star Trek: The Next Generation) VHS cassette on August 4, 1998. The episode was later included on the "Star Trek: The Next Generation" season six DVD box set, released in the United States on December 3, 2002, and on Blu-ray on June 24, 2014. Lessons (Star Trek: The Next Generation) "Lessons" is the 19th episode of the of the American science fiction television series "" and was originally aired in the United States on April 5, 1993, in broadcast syndication. Set in the 24th century, the series follows the adventures of the crew of the Starfleet starship USS "Enterprise"-D. In "Lessons", Captain Picard's (Patrick Stewart)
Descent (Star Trek: The Next Generation) Descent (Star Trek: The Next Generation) "Descent" is the 26th episode of the and the first episode of the of the American science fiction television series "", the 152nd and 153rd episodes overall. Set in the 24th century, the series follows the adventures of the crew of the Federation starship "Enterprise". The episode features a guest appearance by Stephen Hawking, making it the only episode to feature a guest star appearing as themselves on any "Trek" series. On the holodeck, Lt. Commander Data plays a game of poker with holographic representations of Sir Isaac Newton, Albert Einstein, and Stephen Hawking.