First Ever Radio Ad

The first ever radio ad and some commercial radio history in the UKWhat was the very first radio commercial ever broadcast?
Here is your link to hear the ad broadcast on LBC:

https://audioboom.com/posts/487762-bird-s-eye-the-first-ad?playlist_direction=forward

Following this momentous occasion many more commercial stations were licensed in the UK, here is a timeline:
1973
8 October – LBC
16 October – Capital Radio
31 December – Radio Clyde,
1974
19 February – BRMB
2 April – Piccadilly Radio
15 July – Metro Radio
30 September – Swansea Sound,
1 October – Radio Hallam
21 October – Radio City
1975
22 January – Radio Forth
8 February – Radio City
19 May – Plymouth Sound
24 June – Radio Tees
3 July – Radio Trent
16 September – Pennine Radio
14 October – Radio Victory
28 October – Radio Orwell
1976
8 March – Radio 210
16 March – Independent Local Radio
12 April – Beacon Radio,