Underworld used by far the most colour separation overlay (CSO) in the programme's history. Rampant inflation had eaten away at the budget for the back half of the season and using CSO to create virtually every shot of the alien world featured in the story was the only feasible way to preserve the production of The Invasion of Time.
Underworld used by far the most colour separation overlay (CSO) in the programme's history. Rampant inflation had eaten away at the budget for the back half of the season and using CSO to create virtually every shot of the alien world featured in the story was the only feasible way to preserve the production of The Invasion of Time.
