1970. The match was Jimmy Greaves first for West Ham after his transfer from Spurs. He scored 2 in a 5-1 win.
Ronnie Boyce, it says so beneath the video. West Ham won 5-1 that day, with Jimmy Greaves scoring 2 goals on his debut. He'd also scored on his debut for Chelsea, AC Milan, Spurs & England, too. Jimmy had been transferred in a part exchange deal which took Martin Peters (and a British transfer fee record at the time of £200,000) to Tottenham.