1. From a Blackadder episode called "Captain Cook":

George: Tally ho, pip pip, and Bernard's your uncle.
Blackadder: In English we say "Good morning."

2. From E. Cobham Brewer, Dictionary of Phrase and Fable (1898):

Tally-ho! is the Norman hunting cry Taillis au! (To the coppice). The tally-ho was used when the stag was viewed in full career making for the coppice. We now cry “Tally-ho!” when the fox breaks cover. The French cry is “Taďaut!” 1

3. I have no objection to illegalizing fox hunting in the Mother Country, so long as open season on the leaders of the Labour Party is allowed to replace the innocent fox in the hunt.