
Heffer's father George instantly switches gears from complaining about dinner to defending his adopted son. (Unbeknownst to Heffer, he was supposed to bring an elk home to be eaten by the rest of the family.) However, when Heffer reveals he's not really an elk, Elkie immediately wants to break up.
In "An Elk for Heffer," Heffer (having pretended to be an elk) brings his new girlfriend Elkie home for dinner. That said, when Ralph clarifies he doesn't want to hurt Rocko, Heffer and Filburt because they're his friends, Ed still supports Ralph and easily shifts gears to change the plan as Ralph wants. Nowhere in the series do we see Ed happier.
(It turns into a Funny Moment moments later when Ralph explains that he KNOWS Rocko's idea will likely destroy his career, that he WANTS that to happen to try his hand as an actual artist and the look on Ed's face showing he's starting to get where his son is going with the plan.) When this backfires, he goes to his father for help in taking down Rocko. It shows that in the time since they patched up their relationship, Ed's actually grown to respect what his son does and doesn't want Rocko or his friends to taint it.
In a later episode, when Ralph approaches Rocko about working on a new cartoon for him (in an attempt to sabotage his contract to get the chance to build his dream masterpiece), his own dad, the same one who once disowned him for being a cartoonist, chastises him and says Rocko's idiocy will destroy his career. The episode's very title becomes Heartwarming in Hindsight after Static Cling. It's even more warming in that it's the first time Ed actually comes out a winner. Cue heartwarming hug and acceptance, as well as Ed asking if he makes a lot of money, which Ralph shows off his checkbook. Ralph corrects him that he didn't care about Conglom-O, but his father. Despite all that, they each kept their halves of the split ceremonial donut, and when Ed finds this out during their intervention, he is touched by how Ralph does care about Conglom-O. Ed wanted his son to work for Conglom-O, but pretty much disowned him when his speech turned out to be his announcement to move to Holl-O-wood and be a cartoonist.
In "I Have No Son!", both Ed Bighead and his cartoonist son Ralph Bighead refuse to accept the other as family due to a difference in ideals. At the end of "Who Gives A Buck?", after Rocko has his purchases revoked because he couldn't pay his credit card bill, Heffer reveals that he sold one of his stomachs so he could use the money to buy Spunky a new dog bowl.