An incomplete list of 1948/1949 TV episodes you can watch online
1948:
"Howdy Doody"
http://archive.org/details/PuppetPlayhousePresentshowdyDoody-July1948
http://archive.org/details/HowdyDoodyForPresident
"ABC Breakfast Club"
http://archive.org/details/AbcBreakfastClub
"The Gay Nineties Revue"
http://archive.org/details/Gay90sRevue
1949:
"Howdy Doody"
http://archive.org/details/Jeice_The_Cuddly_Warrior-Howdy-Doody-Upload -2
http://archive.org/details/1949NBC-Howdy_Doody_Uploaded-By-Jeice_The_C uddly_Warrior
http://archive.org/details/Howdy_Doody_3_Uploaded_By_Jeice_The_Cuddly_ Warrior
http://archive.org/details/Howdy_Doody_4
"School House"
http://archive.org/details/schoolHouse1949
"Studio One"
http://archive.org/details/StudioOneHenryIv1949
http://archive.org/details/StudioOneJuneMoon1949
http://archive.org/details/StudioOneOfHumanBondage1949
http://archive.org/details/StudioOneJaneEyre
http://archive.org/details/StudioOne_FlowersFromAStranger
http://archive.org/details/StudioOne_TwoSharpKnives
"NBC News"
http://archive.org/details/NbcNews17march1949
"The Ed Wynn Show"
http://archive.org/details/TheEdWynnShow6October1949
http://archive.org/details/TheEdWynnShow9December1949
http://archive.org/details/TheEdWynnShow13October1949
http://archive.org/details/TheEdWynnShow15December1949Episode13
"Armchair Detective"
http://archive.org/details/ArmchairDetective1949
"The Goldbergs"
http://archive.org/details/theGoldbergs-29August1949
http://archive.org/details/theGoldbergs-5September1949
http://archive.org/details/theGoldbergs-12September1949
http://archive.org/details/theGoldbergs-26September1949
http://archive.org/details/theGoldbergs-10October1949
"Texaco Star Theater"
http://archive.org/details/TexacoStarTheater
"Chesterfield Supper Club"
http://archive.org/details/ChesterfieldSupperClub-20november1949
http://archive.org/details/ChesterfieldSupperClub-27november1949
"Fireball Fun-for-all"
http://archive.org/details/FireballFun-for-all1949
"Adventures of Uncle Mistletoe"
http://archive.org/details/AdventuresOfUncleMistletoe
"The Lone Ranger"
http://archive.org/details/OldJoeSister
http://archive.org/details/LegionOfOldTimers1949
http://archive.org/details/TheLoneRanger-CannonballMcKay
http://archive.org/details/DVD-Lone_Ranger_The_Renegades
"Walt's Workshop" (2nd worst show of 1949):
http://archive.org/details/WaltsWorkshop
"Suspense"
http://archive.org/details/Suspense-TheCaskOfAmontillado
Misc:
http://archive.org/details/AnniversaryShowapril301949
http://archive.org/details/1949-RollerDerby-NewJerseyVsPhiladelphia
http://archive.org/details/1949-RollerDerby-NewYorkVsPhiladelphia
BTW, does anyone have any kinescopes of "Elder Michaux"? That 1948-1949 series was along the first with an African-American host.
Does Magna Carta mean nothing to you? Did she die in vain?