Just noticed a sign at the Edwardian Tea Room (Mass Ave, Arlington Heights, convenient to the #77 and #79 buses). They are offering a high tea on Sunday afternoons, reservations encouraged, for $19.95. No details on what's offered, though the regular menu lists tea breads, scones, etc. with choice of toppings (butter, preserves, cream...).
I don't do high tea so I can't comment on it, but others might like to check this out.