Re: Children in Need 2012: Christmas Special prequel + trailer
All of the original doctors had alien companions or companions from quite different times, without looking it up my brain wants to say that current day companions were the minority.
I did a quick count. About 17 out of 29 or so were contemporary, so a slight majority. There's obviously disagreements over who is a companion, though. In the modern era, the number of contemporaries has obviously increased.
When on Romulus, Do as the Romulans