1977 ESSO commercial from the UK
Esso is an international trade name for ExxonMobil and its related companies. Pronounced /ˈɛsoʊ/ (“S-O”), it is derived from the initials of the pre-1911 Standard Oil, and as such became the focus of much litigation and regulatory restriction in the United States. In 1972, it was largely replaced in the U.S. by the Exxon brand, while Esso remained widely used elsewhere. In most of the world, the Esso brand and the Mobil brand are the primary brand names of ExxonMobil, with the Exxon brand name still in use only in the United States alongside Mobil.
info gleaned from Wikipedia
1974 commercial for British Gas
In the early 1900s the gas market in the United Kingdom was mainly run by county councils and small private firms.
In 1948 that all changed with The Gas Act 1948 brought in by Clement Attlee’s Labour government. The act nationalised the UK gas industry and 1062 privately owned and municipal gas companies were merged into twelve Area Gas Boards each a separate body with its own management structure. Each Area Board was divided into geographical groups or divisions which were often further divided into smaller districts. These boards simply became known as the “Gas Board”, a term people still use when referring to British Gas.
1986 commercial for British Gas.