Security employees at Honolulu International Airport accidentally destroyed some of the film from this episode by X-raying the canisters as they were about to be flown to Hollywood for processing. This footage had to be re-shot.
The program that John Locke is watching on TV just before he is visited by Peter Talbot is the fictional show 'Exposé', which isn't formally introduced on Lost (2004) until the next episode, Exposé (2007).
On one table in Ben's home you can see a copy of Stephen Hawking's 'A Brief History of Time'. In Not in Portland (2007), an Other named Aldo was studying black holes from this very same book.
The scotch John's father is drinking is the same Desmond's father-in-law was drinking and wouldn't let Desmond himself drink.
To Ben's right you can see a copy of Stephen King's 'The Gunslinger'. Damon Lindelof is involved in adapting the series with J.J. Abrams.