"Sen. Barbara Boxer (D-CA) plans to stun the world when she announces how she is going to vote on Alito during a speech in Los Angeles"
I don't see her name on your list.
If the name is not on the list, it means the Senator has made an on-the record comment to C-SPAN's satisfaction, that the Senator has already committed to a position. So, C-SPAN has Boxer in the "No" column.
The C-SPAN2 list has all the names. I found it easier, personally, to limit my view to the list of "uncommitted."
I reckon in the land of Gomer Pyle that's an earth-shattering revelation.
As if there was any doubt which way she was going to vote. The biggest surprise was Leaky and Bucket o' Kohl voting for Roberts.