Thunderbirds 1965 was a project undertaken by POD 4 Films in 2015 for the 50th anniversary of Thunderbirds. The project produced three new half-hour episodes of classic Thunderbirds using the original Supermarionation techniques and was funded via Kickstarter.
As stated by the producers – the episodes were only ever to be released to Kickstarter backers as a special celebration.
At this point, there are (as far as we know) no plans for a public release. The episodes were only available to Kickstarter backers and it is not possible to buy them. The episodes turn up from time to time on eBay but have not been publicly released.
If any plans for a public release are announced then they will be covered on the news page and this FAQ answer will be amended. But if you’re reading this, then the three new Thunderbirds episodes are not currently available for purchase.