sentences:  He became well known in Australia, New Zealand, South Africa and the US.He appeared on most of the variety shows on British TV and was one of the few British acts who achieved success in the US, appearing on "The Ed Sullivan Show" in the United States returning to perform a variation of his act for ten years in a row.He was called "the greatest ventriloquist in the world" by Ed Sullivan, who hired him to appear in what turned out to be the third and last appearance by singer Elvis Presley on his show, on 6 January 1957, a program which was broadcast live from the old CBS Studio 50 in NYC and drawing some 50 million TV viewers, as revealed by Trendex figures the week after.