I guess with Smallville Season 1, while the DVD had the entire season in Anamorphic Widescreen, it was probably just edited (and possible captured into the computer) in standard definition, since as I recall the first 3 or 4 seasons were aired on TV in 4:3 and then the DVD sets saw the sets in 16:9.
As for these new announcements I considering getting Fringe Season 2 and Smallville Season 9. The only episode of Fringe that I've seen on TV is the Season 1 finale since I wanted to see Leonard Nimoy, so I got the Season 1 Blu-ray when it came out to see the rest of the series. I found the series to be the type that I'd buy on Blu-ray/DVD, but not the type that I'd tune into every week to catch, since I remember that about half-way through Season 1 I found that the episodes get rather formulaic and dull, so I didn't watch Blu-Ray for close to a month.
As for Smallville I started to watch the season on TV this year, but the last episode that I saw was the one that aired the week before Hallowe'en. However by that point I was finding the plots to be rather formulaic and the General Zod plot was rather boring. The only version of General Zod that I've ever found somewhat interesting was the version presented in Superman 2: The Richard Donner Cut, otherwise, even in the Richard Lester cut, Zod was extremely boring and uniteresting. Plus I was getting tired of show not moving Superman's characteristic growth forward since Season 6 when Martha Kent left. So I'll be picking it up on Blu-Ray to be able to watch it at my own pace. But I hope that Season 10 of Smallville will be the last. I think its time that the show steps aside for future Superman shows before it grows even more stale than it is already.