 Akkerman recalled the attendance of the gigs "were packed because it was probably the only thing that was going on".On 28 May 1972, Focus were booked to play the Lincoln Festival for an estimated 40,000 people, but the band arrived too late for their spot and were unable to reschedule, leaving them furious at the missed opportunity.Two days later, Focus made their British television debut with a pre-recorded performance of excerpts of "Eruption" and "Hocus Pocus" on the BBC music show "The Old Grey Whistle Test".