Frontman Justin Young said that such shows can sometimes be the only way young singers can find success in the modern music industry.
"I actually think the talent shows hark back to the '50s, '60s era of variety stuff," he told BBC News.
"I think they're the old fashioned way. People expect us to turn our noses up at these shows, but I think that for a lot of people it's the only opportunity they're going to get and I think it's as valid as going out playing show after show every night."
Speaking about their own quick success since forming in 2009, Freddie Cowan said: "We played Alexandra Palace at the weekend and that was the biggest show we've done so far.
> The Vaccines live at Alexandra Palace, London - Review
"That was the first moment where I thought 'this is real'. It takes a long time to sink in."
The pair also dismissed talk of trying to crack America, with Young saying: "America is a scary concept."
Cowan added: "You choose territories, if you want to break America you have spend the majority of time there. It's an enormous country."
The Vaccines will embark on a UK arena tour in May 2013.
Watch the video for The Vaccines' 'I Always Knew' below: