The actor and television presenter played space pilot Steven Taylor in the long-running series, appearing in 45 episodes (comprising 10 story arcs) as a companion to the First Doctor (played by William Hartnell).
He cut the ribbon to signify the official opening of the new attraction, which is set to remain there until Monday 3rd November, and also made some notable comments about the state of Doctor Who and his relationship with it.
Purves regards the modern era of Doctor Who as "far too sophisticated for my simple brain", while paying tribute to the approach of the original run that he participated in bringing to life.
"Then, end of story, on to another one. Very simple, very straightforward, very clear and easy for kids to understand."
Purves himself ceased being a regular viewer of Doctor Who during the years of Jon Pertwee's Third Doctor, citing the show's then-focus on Earth-based storylines as the reason for his loss of interest.
"I didn't like the serials then because it got embedded in England," he recalled, "which lots of people think is fabulous and great, it just wasn't for me. It had lost what Doctor Who was all about."
Despite his misgivings, Purves acknowledged it was a "remarkable thing" that Doctor Who had endured for more than six decades, although he fears that younger viewers won't revisit his time on the show due to technology perceived as dated.
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