Q: Why are "Elementary" and "Castle" not being released on Blu-ray? Is there a petition online somewhere to request these shows on Blu-ray?

A: CBS Video, which publishes "Elementary" on DVD, did not offer a response to the question.

ABC Studios, which releases "Castle," said, "For the viewers/fans of 'Castle,' we've found that offering DVD sets is the best way to go. There aren't plans for Blu-ray release of episodes at this time."

TV on DVD expert Gord Lacey, founder of the fantastically useful website TV Shows on DVD (www.tvshowsondvd.com), said, "Well, my guess is that the studios don't think there's enough market for them to be released. We've seen a number of high-profile shows that are released on Blu-ray for one season, but nothing else [because] that season didn't sell. The marketing people at the studios have likely run the numbers of similar shows to project sales, and used that to determine the shows just aren't going to sell well enough. Of course, they could be wrong, and we could see them released down the road, but I'm not counting on it."

'MasterChef' is twice as popular

Q: Why is Fox running two "MasterChef" episodes a night? Is it trying to burn this series off? That would be a shame — I've come to enjoy it.

A: When a reality show works for a network, execs have a tendency to run it into the ground (see: "Who Wants to Be a Millionaire?" on ABC). Not only will "MasterChef" continue in its current pattern until September, but a spinoff, "Junior MasterChef," featuring kid contestants, will air on Fox this fall.

Per a Fox publicist: "The current season of 'MasterChef' will air all summer long into September. We recently announced that the season finale will air on Sept. 11 at [8 p.m.] Additionally, we have already ordered two more seasons of 'MasterChef.' We are giving viewers more of what they want — and that means more ­'MasterChef.' "

'Graceland' doing OK

Q: I love the new summer show "Graceland." How is it doing in the ratings? Do you foresee some episodes in the wintertime once its summer run is over?

A: USA will run "Graceland" straight through to a season finale on Sept. 12 with no plans for a winter run of episodes at this point.

Ratings-wise, "Graceland" got off to an OK start, with 3.3 million viewers. In recent weeks, its ratings have declined and then stabilized. We'll have to wait to see if the 2.7 million viewers it's averaging are enough to keep it around for another season.

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