At a (then) whopping play time of 3:10, 'Ticket to Ride' from their 1965 album 'Help!' was the first Beatles song to overstep the three minute mark. It may seem trivial now, but in the mid-60s it was a big deal because to release a single longer than three minutes meant it stood a big chance of not being played at all.
This is because most pop radio stations had a standard two-and-a-half or three-minute time limit per song. Radio back in this era was formatted to support these "bite-sized" songs as part of their strict timetables, compared to today's more open ended policy. The Beatles helped this evolution, constantly pushing the time barrier 'Hey Jude' in 1968 was over seven minutes, and it still topped the charts!
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