Audio problem: As John and Gordon are fitting the new component on Thunderbird 5, John says, "It looks like we'll be another two hours before we're back in business. In the meantime, International Rescue is non-operational." But he is voiced by David Graham, not Ray Barrett.
Audio problem: When Atlanta says "Come in please" to the Search Vessel 2, his voice is initially that of David Graham but then changes to completely different voice provided by Don Mason.