Complex sentence: The original prints of "Doppelgänger" position Ian Hendry before Roy Thinnes in the opening credits; in the "Journey to the Far Side of the Sun" format, Thinnes is billed before Hendry.
Split into simpler sentences: The original prints of "Doppelgänger" position Ian Hendry before Roy Thinnes in the opening credits. In the "Journey to the Far Side of the Sun" format, Thinnes is billed before Hendry.