The cast recently shot the dramatic 50th anniversary block of episodes which see the Street rocked by an explosion and a devastating tram crash.
"We've been working nights - 7pm at night till 5am in the morning," the Ken Barlow actor told This Is Nottingham. "I've been sleeping during the day when I can."
However, Roache believes that the end result will have been worth the late nights.
"It's going to be very exciting. It's going to be really dramatic and very good stuff. I've been at this show 50 years and when I do things like my new book about my time on the Street, I look back and it reminds me of all I've done."
He continued: "But, for me, it's very much about the here and now. And right now, I'm part of this massive storyline. We're all looking forward to it and it is brilliantly done and very exciting."
Speaking about the live episode, the 78-year-old said it would take place "some time around December 9" - which will be the show's official 50th birthday.
He added: "There will be five shows that week, all taking place around the tram crash and one of those, somewhere, I don't know where yet, is going to be live."
> Roache promises "amazing" Corrie plots