Re: series numbering...
Most traditionally, the UK uses the word "series", whereas the USA/Canada uses the word "season" for each seperate run of any given TV programme.
However, bizarrely, even here in the UK the original 26 years of Dr Who have generally been referred to as "
1, 2, 3... (etc)" (in Episode Guides, etc) for pretty much as long as anyone can care to remember.
Speaking as a life-long fan of "The Classic Series" (I was 9 years old when it ended), I would indeed have loved it if the revived version had started counting its seasons/series from 27. But sadly it wasn't to be.
The fact that Eccleston/Tennant runs are "
1, 2, 3... (etc)" does however still just about distinguish them from the corresponding Hartnell runs, which were "
1, 2, 3 (etc)". So that's sort-of okay.