Yes I think OGWT may have been when I first heard them or maybe supporting Man. It is all a bit hazy.
If I am not suffering from false memory / terminal nostalgia Band Called O were pretty good live and much tougher sounding on stage than on record.
All those mid level Bob Harris / Nicky Horne endorsed bands (Crawler, Moon etc etc) seemed to get lame AOR productions aimed at American radio and got caught somewhere between two stools. I blame Rod myself. Also explains why Be Bop Deluxe, Hammill, Lizzy and SAHB kept their cred after Punk - they at least sounded like rock bands.
No wonder Punk sounded so radical and a blessed relief when it came along though I did buy "White Riot" and "Jess Roden Live" on the same day.