Some people who post on this forum seem to have an issue with the Internet. Here I will help:
TV Guide Link to Lost
For this one if there is a little red "NEW" next to the episode name then it will be a new show. If not, then it is a re-run.
TV.com Link to Lost Episodes
This one is a little tricky, so please read carefully. This shows you all of Season 2's episodes, so you have to scroll the page down using the long bar on the right hand side of the window. No, not that window, the IE, or Internet Explorer, window on your PC, or Personal Computer sometimes referred to as Compaq or Dell or HP.
If you know how to scroll, then move down to episode that has the same date on it that matches the date that you would like to watch Lost. If you cannot find the date, then the show will not be new on that date. Also, unlike TVGuide.com, this site uses numbers for the entire date. It is Month followed by Day followed by Year according to the Gregorian Calendar.
Yahoo Lost Link
This one is the toughest because if you have not already been here, they will ask you for your zip code first. That is the thing you write at the end of the address when you mail a letter. Then you pick your TV provider. Pick DirecTV or Dish if you have one of those grey dishes on the side of your house.
Now, here is where it gets tricky. If the date at the top of the episode matches the "Original Airdate" at the bottom of the episode description, then it is new.
*** Please be careful to check the date next to the show to make sure it is the same as the day you are thinking about watching the show. Just in case, you can mouse over the small clock in the bottom right hand corner of your PC, or Personal Computer sometimes referred to as Compaq or Dell or HP, and verify that today's date is actually what you think it is.