Yes, you could have verified this trivially:

  $ curl http://terminalcast.com | grep jquery
    % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                   Dload  Upload   Total   Spent    Left  Speed
  100  4006  100  4006    0     0  18017      0 --:--:-- --:--:-- --:--:-- 39242
      <script type="text/javascript" src="http://static.terminalcast.com//js/jquery-1.3.1.js"></script>