1. Stilted performances by CEOs. The most well-known exponent of the art of advertising your own company would probably be Victor Kiam, whose Remington commercials made him a household name in the 1980s (and indeed, go-to reference for comedians looking to do material about rich American businessmen). His slick, presentational style was probably helped by him being from the USA, where enthusiastic owners of carpet warehouses or car showrooms plugging their stores in person have been a mainstay of commercial television since the year 1753 [sub please check].
Over here in 1981, new chairman of Woolworths Geoffrey Rodgers had a go at fronting a commercial. With slightly less panache.