The following videos have been released by NTV Entertainment in the UK:

• Prisoner Cell Block H: Episodes 1-2
• Prisoner Cell Block H: Episodes 3-4
• Prisoner Cell Block H: Episodes 5-6
• Prisoner Cell Block H: Episodes 7-8
• Prisoner Cell Block H: Episodes 9-10
• Prisoner Cell Block H: Episodes 11-12
• Prisoner Cell Block H: Episodes 326-327
• The Great Escape: On the Outside Tour 1990

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The following videos have been released by MPI Home Video in the US:

• Prisoner Cell Block H [Vol. 1], Episodes 1 & 2
• Prisoner Cell Block H [Vol. 2], Episodes 3 & 4
• Prisoner Cell Block H [Vol. 3], Episodes 5 & 6
• Prisoner Cell Block H [Vol. 4], Episodes 7 & 8
• Prisoner Cell Block H [Vol. 5], Episodes 9 & 10
• Prisoner Cell Block H [Vol. 6], Episodes 11 & 12

Click on the titles above for more information and larger images.
The US releases are unfortunately all out-of-print.