Mathnet·PBS
All episodes
5 seasons · 30 eps
Season 5
S5 · E1
S5 · E1
S5 · E2
S5 · E2
The Case of the Smart Dummy Episode 2
S5 · E3
S5 · E3
The Case: Off The Record Episode 3
S5 · E4
S5 · E4
The Case of the Bermuda Triangle Episode 4
S5 · E5
S5 · E5
The Case of the Piggy Banker Episode 5
5 episodes in Season 5
Some details come from TheTVDB.