Big Shot was a television program covering the latest happenings in the Solar System for bounty hunters. The show's sole purpose was to inform the "300,000 bounty hunters in the star system" the latest bounties being placed on criminals. The entire show was silly and exaggerated, with an over the top cowboy theme.
Punch (パンチ?) was the friendly host of Big Shot and character played by Alfredo. His onscreen persona was that of a classic western style cowboy, with an extreme, unrealistic accent and manner of speaking. His catch phrase was "shucks howdy!" on the show and would perform acts like using a lasso and riding a mechanical horse as part of the show's atmosphere. 
Judy (ジュディ?) was Punch's sidekick on the show, taking on a bubbly persona who generally has silly or outrageous reactions to the current bounty they were promoting. She mainly played the role of a spectator, asking Punch questions or solidifying his statements. She would also apologize to all the viewers if the bounty head turned out to have died or otherwise not be able to be pursued. 
When the show was canceled, the actress who played Judy broke character on air and furiously stormed off the set. Later, she was rumored to have been engaged to her manager. 
Punch is voiced by Paul St. Peter in English. By Tsutomu Taruki in Japanese.
Judy is voiced by Lia Sargent in English. By Miki Nagasawa in Japanese. It wasn't clear whether the Big Shot character and the actress had the same name. In Brain Scratch, Big Shot is canceled and here we are given the only clue to Judy's real personality. She reacts with extreme anger, changes to her real voice (which is much lower and not bubbly at all), and exclaims the show will be hearing from her manager. It is obvious her onscreen persona and her real personality are nothing alike.
It is often from Big Shot that the crew of the Bebop learn of a new bounty, or gain a tiny clue towards nabbing their current interest. Big Shot makes regular appearances throughout the series and the movie, and makes its debut during Stray Dog Strut.
American Money is the music played in the background.
The credits of the show are seen in Cowboy Funk.
- They are named after a British slapstick puppet show Punch and Judy.