[Brekkie]

Bare in mind in the US Wheel of Fortune is a daily show, churned out five days a week through the year, whereas the UK version was and will remain a weekly version, which makes the feel of the show different in the US to here. 

Also the time limit, as half hour syndicated game shows in the US run for barely 20 minutes, as they squeeze in plenty of commercials, so having a long drawn out intro music and opening titles is a waste of precious time for the US version.

The UK version only had the logo over a studio shot rather than any lengthy opening sequence anyway.