Flipper Season 1 (1964)
S01E05 City Boy
S01E06 Dolphin for Sale

These are Episodes 5 and 6 of the first season of the 1964 television series that starred Brian Kelly, Luke Halpin, and Tommy Norden, a spinoff of the 1963 movie starring Chuck Conners. If you're interested in more episodes please leave a comment.

S01E05 City Boy 
First aired: 10/17/1964 
City boy Mike Beldon arrives in Corel Key with a huge chip on his shoulder about his mother's new husband. However, a near death accident helps him see his new step-father in a different light.
Or
Sandy and a city boy get stuck in a ship wreck and Flipper goes for 
help as the boys run out of air.
Regular Cast: 
Brian Kelly as Porter Ricks
Luke Halpin as Sandy Ricks
Tommy Norden as "Bud" Ricks
Andy Devine as Hap Gorman
Guest star: Jason Greene (Sam Field), M'el Dowd (Amy Field), Philip Vandervort (Mike Beldon)
DVD>XviD/368x272/23.976fps/1.353-23:1 fullscreen
Dolby AC3/48KHz/stereo/192Kbps/25min/175Mb

S01E06 Dolphin for Sale 
First aired: 10/24/1964 
A fisherman captures Flipper with the intent of selling him as a high-priced trained dolphin. 
Regular Cast: 
Brian Kelly as Porter Ricks
Luke Halpin as Sandy Ricks
Tommy Norden as "Bud" Ricks
Andy Devine as Hap Gorman
Guest star: Dan Chandler (Warden Dennis), John McGovern (Constable Peters), Ken Drake (Dorrie Stone), Duke Farley (Kyle Stewart)
DVD>XviD/384x288/23.976fps/1.333-4:3 fullscreen
Dolby AC3/48KHz/stereo/192Kbps/25min/174Mb