“Oak Tree: Nature’s Greatest Survivor (BBC Four) was a 90-minute documentary detailing a year-long study of a single 400-year-old oak in Oxfordshire. It might sound about as interesting as watching grass grow but this was classy, engrossing television. “I can promise you one thing,” said entomologist George McGavin. “You’ll never look at an oak tree the same way again.” He was true to his word.” (read more)