Brian Steinberg Senior TV EditorIf NBC and Lorne Michaels have their way, NBC’s “Saturday Night Live” this fall could move from being produced from cast members’ homes to being made the old-fashioned way – “from New York.”Michaels and his team are making plans to bring the show back to NBC’s Manhattan studios for the venerable late-night program’s 46th season, according to two people familiar with the matter – the latest of TV’s wee-hours programs to try and navigate a new normal in the midst