That was neat to see.
When I first saw the "G for Grover" segment pictured in Muppet Wiki guides but not the one called "Hey Frog" (more on that below), I wondered if Scott just got footage for that one (he noted on his user page that he's found "G for Grover" listed in additional scripts but not "Hey Frog") or if maybe it was actually a two-part segment and the wiki description didn't have any indication of that. But watching those segments, they don't really need to be seen in the same episode.
The first segment is weird, I guess they just really wanted to make a big deal out of Grover being named. Susan mentions Grover down the street, and we just get a random segment using the usual plain background as opposed to actually taping on the street set. I feel it would have been better if "across the street" was across from the building as opposed to down the street (of course this season didn't have the curve and was all straight bit still), maybe use the city backdrop from "Windy".
Seems Grover shouting "hey Susan" would have been limited to repeat. They'd pretty much need to have more street scenes with Susan saying that Grover is coming for it to work (though it seems the first season had a lot of inserts where the voice-overs were always different and required a street scene introducing it, the Alphabet Bates segments seem to be among those, as well as the animal pairs film from the first episode). Would have been interesting if they made multiple sketches with Grover running up greeting the other humans for similar use.
I think the script titles it "Grover: Hey Frog", and the first season show content titles it "Grover 'hey frog' (hey Susan)". I know that the titles were never meant to be seen by the general public, but it is weird that they put "hey frog" as a sketch title when Grover never uses that phrase in this particular sketch. Grover often did greet Kermit with "Hey, Frog!" in the first season, but the G segment has him saying "Hey, Froggy!" Not quite "Hey, Froggy Babyyyyy!", but the catch phrase is starting to evolve into the more familiar phrase.
In the last year, as script info has made its way online and it was pretty much determined/confirmed that the Grover in those sketch titles is the one we know, and thinking about how the familiar blue Grover appeared on The Ed Sullivan Show a month later, I wondered if maybe they had built the blue Grover puppet by then. I am glad to see that the green Grover was referred to as Grover on the show.
I was very surprised Kermit was in the G for Grover sketch (I would have expected him to be mentioned in the "hey frog" bit). Does the script just list those two sketches by title as opposed to scripting the individual segments? I know most Muppet sketches tend to be scripted in their first episode appearances as opposed to listed, these were among the few Muppet bits where the wiki didn't list more than just the sketch titles (well, when it comes to researching the scripts with the first appearances). If the script did include the dialogue and such, I would have expected it to mention Kermit's involvement (and maybe I should have known by Susan's "Kermit should watch out for Grover" comment in the introduction).