The worst may finally be over at Entre Computer Centers, the McLean-based franchiser of computer retail stores.

Entre reported that it narrowly broke even in fiscal 1987 after reporting a loss in 1986 due to the shakeout in the computer industry and troubles in its franchise network.

The company said net income totaled $101,000 (1 cent per share), compared with a net loss last year of $8 million.

In the fourth quarter that ended Aug. 31, Entre reported net earnings of $1.1 million (11 cents), compared to a loss of $4.6 million in the same period a year ago.

The company said fourth-quarter earnings were based on franchise sales of $129.9 million, up from $118 million last year.

The company did not give precise full-year sales figures, although it did say its North American stores had sales of more than $500 million, up $47 million from the year before.

Bert I. Helfinstein, Entre's president, said the reason for the marginal profits in 1987 was that the company was forced to absorb more than $8 million in pretax operating losses and shut-down expenses associated with the closing of Entre's overseas operations, which reduced annual earnings by about 41 cents per share, he said.

TVI Corp., a Beltsville manufacturer of thermal targets and other training devices for the military, reported continuing losses in its third quarter.

The company said it lost $233,992 in the third quarter, compared with a loss in the similar period of last year of $543,266.

The company reported sales of $728,738 in the quarter, down from $740,270 last year.

For the first nine months of the year, the company lost $550,263, compared with a loss of $772,395 in the same period a year ago. Nine-month sales were $3 million, up from $2.9 million last year.

Classic Corp., a Jessup-based waterbed maker, said it lost $384,000 in the quarter that ended Sept. 30, compared to a $117,000 (4 cents) profit a year ago as the startup of a new product line cut into the company's finances. Sales dipped to $6.6 million in the quarter from $8.4 million a year ago.