Query: Cheaper Freeview Set-top boxes

Reference the recent issue of the introduction of TopUp Tv causing some of
the mainstream channels to not work on some of the cheaper Freeview boxes.

I haven't kept up with this issue and was wondering if or how it had been
resolved?

A friend is looking to buy a cheaper end box from Argos
http://tinyurl.com/28adn and really needs to know which box(es) to steer
clear of and / or a good box to go for. Any advice appreciated.
TIA
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