He was the regular host of CBC Radio One's Cross Country Checkup, a nationwide call-in show, for 21 years before stepping down in September 2015.
Murphy characterized Newfoundland Premier Joey Smallwood's governing style as dictatorial and proclaimed his legislature's recent announcement of free tuition as a sham as it only covered the first year of a degree program.
In the 1970s, he worked as an interviewer on Here and Now which aired on CBC Radio in Newfoundland, and in Toronto, on the current affairs program Up Canada!
He was also the regular host of CBC Radio One's Cross Country Checkup, a nationwide call-in show, starting in 1994 and continuing for 21 years.
Murphy, advocating for former prime minister Pierre Trudeau,[9] guided his candidate to third place in the final vote.
[10] Murphy retired from Cross Country Checkup on 20 September 2015,[11] and continued his commentary segments on The National until 28 June 2017.
[12][15] In October 2019, he launched RexTV, his own YouTube channel, in which he interviewed prominent figures in politics, business, academia, journalism, science and culture who might be ignored or misrepresented by the mainstream media.
He criticized former US Vice President Al Gore's opposition to the Alberta oil sands and in a 2013 column, called the industry "a dazzling and profitable engineering endeavor of which all Canadians should be proud".