Time changes things, but unfortunately, it doesn’t look like time will change the fate of a “Doctor Who” and “Sherlock” crossover. Mark Gatiss, who writes for BBC America’s “Doctor Who,” as well as produces and acts in PBS’ “Sherlock,” once again denied a crossover between the two shows.

“I’m not being horrible but I just don’t see the point,” Gatiss told Entertainment Weekly. “First of all, they are entirely different shows. But I think there’d be so much excitement among certain members of the fan community followed by massive disappointment that it wasn’t the version they had in their heads. And, just personally, I’ve never been [a] fan of these kind of mash-ups.”

This isn’t the first time Gatiss has voiced this particular opinion. In 2014, Steven Moffat, who is the showrunner on both British dramas, said that Gatiss knew it could never be what fans hoped for. “You know in some ways, I think Mark [Gatiss] has got a point when he says that however good you imagine [the crossover], it would be almost better in your imagination than it would be if the two grand old egotists actually met,” Moffat told audiences at a Q&A session, the Independent reports.

However, the showrunner doesn’t agree with his writer. Moffat would like to do a crossover eventually. “Look, I’m going to come clean on this: I would,” Moffat added. “Go speak to Benedict Cumberbatch, Martin Freeman, Mark Gatiss and Sue Vertue, OK? They’re all in the way. I’m not the killjoy, it’s that lot. It’s probably not going to happen.”

Even if Moffat doesn’t makes his crossover dreams come true, he might be able to use some of the same actors in both. As previously reported, Amanda Abbington, Mary on “Sherlock,” would love to take a ride in the TARDIS. “Yeah, I'm still trying to get in there,” she told the Independent in October. “You'd think I would with Steven Moffat as my mate, but yes, I'd love to be in ‘Doctor Who’ -- he's got to put me in it.”

Do you think “Doctor Who” and “Sherlock” should crossover? Sound off in the comments section below!