For computer work, calibrated near-reference (IPS LCD) grade monitor are best. Calibration is the most important part. You can get away with TVs (CRT, LCD, Plasma, etc), but calibration is still the most important. Otherwise, all your doing is correcting for a monitor, instead of correcting a video. And it may come out worse!
There's some calibration downloads in the Premium Member forum.
Yes, LCDs can blur, if the deinterlacing filter isn't very good. Many TVs have the issue. Only Sony has a good one, in my experience. Some LG and Samsung, on the better models, are decent. If you have a no-name (or budget/Walmart) brand, it probably add more blur on VHS sources.
Then again, you should be editing the VHS as interlaced (i.e, you look at interlaced video, and see the lines). Only watch it deinterlaced. If the is connected to a computer, using the VLC 2x Yadif deinterlacer, which makes nice progressive output to view. Not as perfect as the QTGMC method for encoding, but fine for watching with few artifacts.
Some LCDs are just blurry period, however, even with progressive content. My old Sharp EDTV is like this.