One of my friends recommended ER to me, and as I saw this for an extremely cheap price in the shop I thought; go for it. And I was very glad that I did.
ER season 7 I found absolutely amazing. I had lots of fun spotting the guest stars and what other shows they recurred on, and in season 7 there are lots to spot. Wentworth Miller is in the first episode at some point. Very interesting.
The acting talent has improved dramatically from season 6. With the exception of Carter, whom I'm almost 100% sure has the range of an egg. Nevertheless, this does not distract from what promises to be, and lives up to its expectations of one of the best seasons. Three characters from the first season still remain, Drs. Green, Carter and Benton. Dr. Green in particular, Anthony Edwards, plays an integral part to especially the latter half of the season, with his illness. He can act very well, along with his very British wife, Dr. Corday.
Dr. Weaver actually has a proper storyline, and this is possibly one of the best so far in 13 seasons of ER, and her supporting actress, Elizabeth Mitchell does a great job. It really is a good storyline. Abby and Luka are as intersting as ever, Ming Na's character is unfortunately under-used and Michael Michelle's character is unfortunately over-used. And of course, Paul McCrane does a good job of his 'wicked witch' style chief whilst Erik Palladino manages to be not quite as irritating as last season.
We have many appearances by Sally Field, always a highlight, and do not detract from the ever-increasing amount of gore we are seeing, and its now not a surprise when there is a fire in the ER room once a season.
The episodes are fantastic, and the acting is at its best. It is only a shame that the eighth season sees so many departures. I've attempted to not put in any spoilers as they really annoy me, but hopefully have informed you well enough. I advise you to buy ER season 7 immediately, and with vehemence.