In February 1964, the Beatles arrived in the United States and their televised performances on "The Ed Sullivan Show" were viewed by approximately 73 million people. There, the band's instant popularity established their international stature, and their unprecedented domination of the national sales charts was mirrored in numerous other countries. Their August 1965 concert at New York's Shea Stadium marked the first time that a large outdoor stadium was used for such a purpose, and with an audience of 55,000, set records for attendance and revenue generation. To protect them from their fans, the Beatles typically travelled to these concerts by armoured car. From the end of that year, the band embraced promo clips for their singles to avoid the difficulties of making personal appearances on television programmes. Their December 1965 album "Rubber Soul" marked a profound change in the dynamic between fans and artist, as many Beatles fans sought to appreciate the progressive quality in the band's look, lyrics and sound.