At the meanwhile vs at the sametime

Some examples from the web:

• Meanwhile at the Cheesecake Mill across town:
• We get frisked at the gate, meanwhile the natives come and go as they please.
• Meanwhile at the departure gate, Moses is pulling out all the stops to get an upgrade for his elderly passenger.
• Meanwhile at the Vienna Chamber Opera, the focus is on rarities. The Volksoper presents classic operas in German, musicals and lively operettas.
• You spend your day talking about when you had a job at the mine and meanwhile the roof is about to leak.
• This was met with little support at the time. Meanwhile, it is my understanding that the support for rejecting this legislation has grown considerably.
• Meanwhile at the Iceberg Lounge the gang led by the Penguin is partying on and the come ons and music fuse to create a perfect groovy atmosphere, somewhat SCANDALOUS...
• I attended classical studies at Liceo Cesare Beccaria in Milano and now I'm studying industrial chemistry at the Università Statale. Meanwhile I delight myself in several activities I carry out during the free time.

Some examples from the web:

• He was the first one to direct three movies at the sametime.
• But at the sametime it can cause Unknown Health Risks and allergy Among mankind.
• literally bakes and freezes at the sametime.
• Tempietto is very spacious, tastefully furnished with antiques, and at the sametime, very comfortable and practical.
• At the sametime the Soviet Union attacked from the east.
• What to Do When You Believe and Doubt at the SameTime
• La Thuile offers some of the most remarkable views in the Alps and at the sametime presents a number of exciting trails and technical challenges.