Ответ:

  1. Watching TV is far more popular as a hobby than writing poetry.
  2. Jack Black is slightly taller than Daniel Radcliffe.
  3. For most people, watching football on TV is a lot more exciting than watching yoga.
  4. The programme was a bit longer than normal, because it usually lasts 55 minutes.

Far and a lot show a large difference; slightly and a bit show a small difference.