pilot episode
... that the pilot episode of Agents of S.H.I.E.L.D. was the most watched first episode of a drama series in the United States for nearly four years?
... that the <b id="mwDAg"><a href="./Pilot_(Agents_of_S.H.I.E.L.D.)" id="mwDAk" rel="mw:WikiLink" title="Pilot (Agents of S.H.I.E.L.D.)">pilot episode</a></b> of <i id="mwDAo"><a href="./Agents_of_S.H.I.E.L.D." id="mwDAs" rel="mw:WikiLink" title="Agents of S.H.I.E.L.D.">Agents of S.H.I.E.L.D.</a></i> was the most watched first episode of a drama series in the United States for nearly four years?