Don't imagine there is much light to be shed; at the time an awful lot of TV sets had their preset buttons marked 'BBC1, 'BBC2', 'ITV1' and 'ITV2', and in those days before obsessive corporate branding, TV-am doubtless thought it a perfectly legitimate piece of marketing to advise people to tune to 'ITV1'.
Don't imagine there is much light to be shed; at the time an awful lot of TV sets had their preset buttons marked 'BBC1, 'BBC2', 'ITV1' and 'ITV2', and in those days before obsessive corporate branding, TV-am doubtless thought it a perfectly legitimate piece of marketing to advise people to tune to 'ITV1'.
Yes, also remember that Channel 4 had started only a few months earlier so viewers might have thought that TVam was on Channel 4 or even a new station totally seperate