I didn't watch Homeland at all, can't compare.
If Americans strikes your curiosity, just watch the pilot and you'll get the idea if it's for you.
Real commie spies spend more time in the bed than under the bed :)
The extent of Soviet espionage during the cold war is one fascinating story. There's another story made into film,
L'affaire Farewell, set in Moscow about a French diplomat used as an in-between by a disillusioned KGB analyst to get info to the West. It just so happened that there was list of the KGB Line X agent network and a hundred or so of their snitches in high places.
wikipedia -Farewell Dossier
CIA library/center-for-the-study-of-intelligence/publications/farewell.htm