Matlock - Season 1 - Eps 17: The Convict
Seven years ago Ben defended Les Matthews, who was accused of killing his friend and business partner and Ben lost. Today Matthews has been granted parole. While working in the library, Wayne Lashley enters with his two goons, Lipton and Foley. While Lipton and Foley keep watch, Lashley tries to kill Les, but in the struggle, it's Lashley who ends up dead, and Les who ends up looking guilty. Matthews is charged with Lashley's murder and Ben wants to defend him. He sends Tyler undercover in the prison and places him with the cellmate of the man who was killed. He gives Ben evidence that not only proves Matthews is telling the truth but also who was responsible for the murder that Matthews was convicted of seven years ago.
About Matlock

Title: Matlock
First Air Date: 1986-03-03
Last Air Date: 1995-05-07
Status: Ended
Rating: 7.1/10 (from 117 votes)
Language: EN
Seasons: 9
Total Episodes: 194
Network: NBC ABC
Genres: Drama, Crime
Production Companies: Viacom Productions, Dean Hargrove Productions, Fred Silverman Company, The Matlock Company
Synopsis
Matlock is an American television legal drama, starring Andy Griffith in the title role of criminal defense attorney Ben Matlock. The show, produced by The Fred Silverman Company, Dean Hargrove Productions, Viacom Productions and Paramount Television originally aired from September 23, 1986 to May 8, 1992 on NBC; and from November 5, 1992 until May 7, 1995 on ABC. The show's format is similar to that of CBS's Perry Mason, with Matlock identifying the perpetrators and then confronting them in dramatic courtroom scenes. One difference, however, was that whereas Mason usually exculpated his clients at a pretrial hearing, Matlock usually secured an acquittal at trial, from the jury.
Cast

Andy Griffith
Ben Matlock

Daniel Roebuck
Cliff Lewis

Carol Huston
Jerri Stone